PR

en-noun

PR (countable and uncountable, plural PRs)

prothrombin ratio
prothrombin ratio#English

(hematology) Initialism of prothrombin ratio.


leukocyte

leukocytes (plural)
leucocyte (alternative UK)

In disease of the spleen, especially Banti's disease or fibro-adenia of the spleen, the increase of leukocytes is absent or slight, with no relative lymphocytosis.

1923, International Medical Digest, page 316:

Iberdomide, a cereblon modulator promoting degradation of the transcription factors Ikaros and Aiolos, which affect leukocyte development and autoimmunity, is being evaluated for the treatment of systemic lupus erythematosus (SLE).

2022 March 17, Joan T. Merrill, Victoria P. Werth, Richard Furie et al., “Phase 2 Trial of Iberdomide in Systemic Lupus Erythematosus”, in The New England Journal of Medicine, volume 386, number 11, →DOI, page 1034:

(hematology, cytology, immunology) Any of a class of blood cells that play various roles in cell-mediated immunity.


erythrocyte

/əˈɹɪθɹəˌsaɪt/

From erythro- (“red”) + -cyte (“cell”), referring to the red color of hemoglobin when oxygen is bound to it.

The want of success of these names may be attributed to their awkwardness in sound or sense; "erythrocyte" seems the best of them, but is unfortunately four-syllabled.

1901 March 23, Ch. S. Sherrington, “The name of the red corpuscle: a suggestion”, in British Medical Journal, page 742:

Granular, basic, or punctate degeneration of the erythrocyte is a condition in which this cell presents fine or coarse granules that have an affinity for basic stains.

1901 September 7, C. Y. White, “Granular degeneration of the erythrocyte”, in The American Journal of the Medical Sciences, volume 122, number 3:

(hematology, cytology) A hemoglobin-containing cell, especially as found in humans but more generally present in the blood of most vertebrates, that is involved with the transport of oxygen; such cells are usually anucleate in humans and many other animals.


plasma

plasma (countable and uncountable, plural plasmas or plasmata)

From Late Latin plasma (“mold”), from Ancient Greek πλάσμα (plásma, “something formed”).

der

human seminal plasma protein hypersensitivity

blood plasma

lymph plasma

(hematology) A clear component of blood or lymph containing fibrin.


APL

en-noun

APL (countable and uncountable, plural APLs)

(computer language): From the book A Programming Language (1962).

The disease that stood at the pivotal crossroads of oncology was yet another rare variant of leukemia called acute promyelocytic leukemia—APL.

2010, Siddhartha Mukherjee, The Emperor of All Maladies, Fourth Estate (2011), page 407:

acute promyelocytic leukemia
w:acute promyelocytic leukemia

(oncology, hematology, uncountable) Initialism of acute promyelocytic leukemia.


thrombus

Borrowed from New Latin thrombus, from the Ancient Greek θρόμβος (thrómbos, “lump, piece, blood clot, milk curd”); compare thrombo-.

der

(hematology, pathology) A blood clot formed from platelets and other elements that forms in a blood vessel in a living organism, and causes thrombosis or obstruction of the vessel at its point of formation or travel to other areas of the body.

خُثْرَة

blood clot formed in blood vessels that leads to thrombosis


TLC

en-noun

TLC (countable and uncountable, plural TLCs)

(hematology) Initialism of total leukocyte count.


hemopoiesis

hemopoiesis (usually uncountable, plural hemopoieses)

(hematology, cytology) Formation of new cellular components of the blood in myeloid or lymphatic tissue.


white blood cell

white blood cell (plural white blood cells)

LL-Q1860 (eng)-Flame, not lame-white blood cell.wav

(hematology, cytology, immunology) A type of blood cell that is involved with an immune response, or part of the immune system.

witbloedselle

cytology: a type of blood cell that is involved with an immune response


red blood cell

LL-Q1860 (eng)-Vealhurl-red blood cell.wav

LL-Q1860 (eng)-Flame, not lame-red blood cell.wav

(hematology, cytology) A type of cell in the blood of vertebrates that contains hemoglobin and transports oxygen from the lungs to the tissues; an erythrocyte.

كُرَيَّةُ دَمٍ حَمْرَاء

haemoglobin-carrying blood cell in vertebrates


PT

PT (countable and uncountable, plural PTs)

prothrombin time
prothrombin time#English

(hematology) Initialism of prothrombin time.


PTT

PTT (countable and uncountable, plural PTTs)

partial thromboplastin time
w:Partial thromboplastin time

(hematology) Initialism of partial thromboplastin time.


INR

international normalized ratio
w:international normalized ratio

(hematology) Initialism of international normalized ratio (“indicator of the clotting tendency of blood”).


blood cell

blood cells (plural)
blood-cell (alternative)

(hematology, cytology) Any of the cells normally found in blood, namely erythrocytes and leukocytes, sometimes including the platelets.

خَلِيَّة دَم

any of the cells normally found in the blood


platelet

(hematology, cytology) A small colorless disk-shaped particle found in the blood of mammals, which plays an important role in the formation of blood clots.


blood test

HIV-positive persons may test falsely on the standard syphilis blood tests because they may not be able to mount the "normal" immunological response required of such tests.

1988 April 16, Mike Smith, “AIDS and Syphilis”, in Gay Community News, page 5:

(medicine, hematology) A laboratory analysis performed on a blood sample that is usually extracted from a vein in the arm using a hypodermic needle, or by fingerprick.

تَحْلِيل الدَّمّ

a serologic analysis of a sample of blood


blood clot

(hematology, pathology) A clot formed from platelets and other elements; that forms in a blood vessel in a living organism, and causes thrombosis or obstruction of the vessel at its point of formation or travel to other areas of the body.


hematopoiesis

hematopoiesis (usually uncountable, plural hematopoieses)

hematopoieses (plural)
hæmatopœsis (alternative)
haematopoiesis (alternative)

(hematology, cytology) The process by which blood cells are produced.


macrocyte

(hematology, cytology) an unusually large red blood cell that is associated with pernicious anemia


thrombocyte

/ˈθɹɒmbə(ʊ)sʌɪt/


respirocyte

(hematology) An artificial red blood cell manufactured using nanotechnology.


ESR

erythrocyte sedimentation rate
erythrocyte sedimentation rate#English

(hematology) Initialism of erythrocyte sedimentation rate.


polypus

From Latin polypus, from Ancient Greek πολύπους (polúpous). Doublet of polyp.

(hematology, pathology) A cardiac thrombus usually found post-mortem.


hematocyte

(hematology, cytology) Any blood cell produced by hematopoiesis, but especially a red blood cell


blood plasma

blood plasma (usually uncountable, plural blood plasmas)

LL-Q1860 (eng)-Flame, not lame-blood plasma.wav

Holonym: blood

Meronyms: serum, blood serum, clotting factors

(hematology) The clear fluid portion of blood in which the blood cells are suspended.


blood corpuscle

blood corpuscle (plural blood corpuscles)


thrombocytopenia

thrombocytopenia (countable and uncountable, plural thrombocytopenias)

thrombocytopenias (plural)
thrombocytopaenia (alternative)

(hematology) An abnormally low number of platelets in the blood.

severe fever with thrombocytopenia syndrome

thrombosis with thrombocytopenia syndrome

vaccine-induced immune thrombotic thrombocytopenia

vaccine-induced prothrombotic immune thrombocytopenia


proplatelet

From pro- + platelet. Entered widespread use in early 1990s.

(hematology) A portion of a megakaryocyte which is broken off to form a platelet.


myeloid

/ˈmaɪəˌlɔɪd/

(hematology) Of or pertaining to bone marrow.


red cell

(hematology, cytology) A type of cell in the blood of vertebrates that contains haemoglobin and transports oxygen from the lungs to the tissues; a red blood cell.


AML

AML (countable and uncountable, plural AMLs)

Secondary AML was assigned if a patient had a history of chemotherapy/radiation therapy for a malignancy and/or had a history of preleukemic disease (eg, myelodysplastic syndrome [MDS], myeloproliferative neoplasm [MPN]).

2018, C Ustan et al., “Core-binding factor acute myeloid leukemia with t(8;21): Risk factors and a novel scoring system (I-CBFit)”, in Cancer Medicine:

acute myeloid leukemia
acute myeloid leukemia#English

(countable, uncountable, hematology, oncology) Initialism of acute myeloid leukemia.

acute myeloblastic leukemia
acute myeloblastic leukemia#English

(oncology, hematology) Initialism of acute myeloblastic leukemia.

acute myelogenous leukemia
acute myelogenous leukemia#English

(oncology, hematology) Initialism of acute myelogenous leukemia.


hematogenesis

1903, James Ewing, “Progressive pernicious anemia is believed by some to result through defective hematogenesis, and by others primarily from excessive...”, in Clinical Pathology of the Blood: A Treatise on the General Principles and Special Application of Hematology, page 215:

1965, William Bloom, Hal Downey, “This has not as yet been accomplished for mammalian material, although studies have been made of hematogenesis in vivo in Fundulus embryos...”, in Handbook of Hematology, page 867:

2005, C. Edward Collins, “...or wrinkled skin blood cyst formation of blood cells adjectival form of hematogenesis abnormal blood condition pain in a nerve stretched nerve synonym...”, in A Short Course in Medical Terminology, page 302:

(hematology, cytology) Blood cell formation in the human body, especially the bone marrow, hematopoiesis.


acanthocyte

From Ancient Greek ἄκανθα (ákantha, “thorn”) + κύτος (kútos, “cell”)

(hematology) A pathological, irregularly spiked red blood cell without central pallor.


ALL

ALL (countable and uncountable, plural ALLs)

In children, leukemia was most commonly ALL—lymphoblastic leukemia—and was almost always swiftly lethal.

2010, Siddhartha Mukherjee, The Emperor of All Maladies, Fourth Estate (2011), page 17:

acute lymphoblastic leukemia
acute lymphoblastic leukemia#English

(oncology, hematology) Initialism of acute lymphoblastic leukemia.


erythrocyte sedimentation rate

erythrocyte sedimentation rate (plural erythrocyte sedimentation rates)

erythrocyte sedimentation rates (plural)

(hematology) The rate (usually expressed in millimeters per hour) at which red blood cells precipitate in a vertical tube over a period of one hour, often determined as a screening test for the presence of inflammation.

lasko

the rate at which red blood cells precipitate in an hour


C-reactive protein

On discovery (in 1930) the substance was observed to react to the C polysaccharide of pneumococcus.

(hematology) A protein found in the blood, whose plasma concentrations are raised in patients with infection or inflammation.


thrombogenesis

thrombogenesis (usually uncountable, plural thrombogeneses)


euglobulin lysis time

euglobulin lysis time (plural euglobulin lysis times)

(medicine, hematology) A blood test that measures the amount of time required for a clot to break down in the blood.


venipuncture

venipuncture (countable and uncountable, plural venipunctures)

venipunctures (plural)
venepuncture (alternative)
venopuncture (alternative)

From ven- + puncture, equivalent to veno- + puncture but with -i- as interconsonantal (versus -o-).

(hematology) The puncture of a vein, usually to draw a blood sample, collect a blood donation, or insert an intravenous line.

vérvétel

hematology: the collection of blood from a vein


complete blood count

complete blood count (plural complete blood counts)

(hematology) A measure of the number, concentration, and size of white blood cells, platelets, and red blood cells in one's blood.


basophilia

basophilia (countable and uncountable, plural basophilias)

(hematology) A condition where the quantity of basophils (basophil granulocytes) is abnormally elevated.


degmacyte

From Ancient Greek δῆγμα (dêgma, “bite”) + -cyte.

(hematology) An abnormally-shaped red blood cell with one or more semicircular portions removed from the cell margin, resulting from the removal of denatured hemoglobin by macrophages in the spleen.


dilute Russell's viper venom time

dilute Russell's viper venom time (countable and uncountable, plural dilute Russell's viper venom times)

dilute Russell's viper venom times (plural)

(hematology) The time measurement resulting from an in vitro diagnostic test based on the ability of the venom of the Russell's viper to induce thrombosis.


RBC

(hematology) Initialism of red blood cell.


plasmogenous

(hematology) That forms the blood plasma.


ISI

international sensitivity index
w:international normalized ratio

(hematology) Initialism of international sensitivity index.


smudge cell

chronic lymphocytic leukemia
chronic lymphocytic leukemia

(hematology) cell remnant, most often seen with abnormally fragile lymphocytes in afflictions such as chronic lymphocytic leukemia (CLL), but also occurring in degenerating samples


blister cell

(hematology) red blood cell containing a peripherally located vacuole, a precursor of bite cells; often seen with glucose-6-phosphate dehydrogenase (G6PD) deficiency.


Heinz body

Named after Robert Heinz (1865–1924), a German physician who in 1890 described these inclusions in hemolytic anemias.

(hematology) A supravitally-stainable, small, round inclusion within red blood cells composed of denatured hemoglobin.


NRBC

(hematology, cytology) Initialism of nucleated red blood cell.


hyperchromia

(hematology) The state of being hyperchromic, i.e. having a higher-than-normal amount of haemoglobin in the red blood cells.


spur cell

The abnormal thorny projection resembles a spur used in riding.

(hematology) A pathological, irregularly spiked red blood cell without central pallor.


aplastic anemia

aplastic anemia (countable and uncountable, plural aplastic anemias)

aplastic anemias (plural)
aplastic anaemia (alternative)
aplastic anæmia (alternative)

hematopoietic stem cell
hematopoietic stem cell

(pathology, hematology) A rare disease in which the bone marrow and the hematopoietic stem cells that reside there are damaged, causing pancytopenia.


HSC

hematopoietic stem cell
hematopoietic stem cell#English

(cytology, hematology) Initialism of hematopoietic stem cell.


angioarchitectonics

(hematology) The design and formation of blood vessels


RDW

red blood cell distribution width#English

(hematology) Initialism of red blood cell distribution width.


kaolin clotting time

kaolin clotting time (countable and uncountable, plural kaolin clotting times)

kaolin clotting times (plural)
KCT (alternative)

(hematology) (The result of) a sensitive test used to detect lupus anticoagulants.


Westergren method

Described by Swedish physician Alf Vilhelm Albertsson Westergren (1891–1968) in 1921.

erythrocyte sedimentation rate
erythrocyte sedimentation rate

(hematology) A method, used to estimate the erythrocyte sedimentation rate (ESR), which measures the distance (in millimeters) which red blood cells in anticoagulated whole blood fall to the bottom of a standardized upright tube over a period of one hour.


APML

acute promyelocytic leukemia
acute promyelocytic leukemia#English

(oncology, hematology) Initialism of acute promyelocytic leukemia.


LCH

langerhans cell histiocytosis
langerhans cell histiocytosis#English

(hematology) Initialism of langerhans cell histiocytosis.


mid cell

mid cells (plural)
MID cell (alternative)
mid-cell (alternative)

From mid (“middle”) + cell, named after the fact that the cell appears as part of the middle peak of three peaks usually seen in a white blood cell histogram organized by cell volume and analyzed in three parts.

(hematology, chiefly in the plural) A white blood cell, such as a monocyte or blast cell, with around 100 femtoliters in volume, greater than most lymphocytes and less than most granulocytes.


MCH

mean corpuscular hemoglobin
mean corpuscular hemoglobin#English

(hematology) Initialism of mean corpuscular hemoglobin.

MCHC

mean corpuscular hemoglobin concentration


prothrombin time

prothrombin time (countable and uncountable, plural prothrombin times)

(medicine, hematology) The amount of time required for the plasma of one's blood to clot.


ecarin clotting time

(medicine, hematology) A laboratory test used to monitor anticoagulation during treatment with hirudin.


blood circulation time

blood circulation time (countable and uncountable, plural blood circulation times)

(medicine, hematology) The amount of time taken by a blood particle to travel from one point in the circulation to the other; the average linear velocity of blood.


activated clotting time

activated clotting time (countable and uncountable, plural activated clotting times)

(medicine, hematology) A test of coagulation, used to monitor anticoagulation effects.


partial thromboplastin time

partial thromboplastin time (countable and uncountable, plural partial thromboplastin times)

(medicine, hematology) A blood test that characterizes coagulation of the blood.


recalcification time

recalcification time (countable and uncountable, plural recalcification times)

(medicine, hematology) A measure of the amount of time required for the formation of a clot in recalcified blood.


holding time

holding time (countable and uncountable, plural holding times)

(medicine, hematology) Of a blood or sample test, the elapsed amount of time from the moment of collection to the moment of the initiation of the preparation or analysis.


tissue thromboplastin inhibition time

tissue thromboplastin inhibition time (uncountable)

(medicine, hematology) A modification of the prothrombin time test in which thromboplastin, a reagent, is diluted, and hence the phospholipid concentration is reduced.


thrombin time

thrombin time (countable and uncountable, plural thrombin times)

(medicine, hematology) A blood test that measures the amount of time required for a clot to form in the plasma of a blood sample containing an anticoagulant, after an excess of thrombin has been added.


clot retraction time

clot retraction time (plural clot retraction times)

(medicine, hematology) A measure of the amount of time required for a blood clot to retract from the walls of a test tube.


clotting time

clotting time (countable and uncountable, plural clotting times)

(medicine, hematology) A general term for the amount of time required for a blood sample to coagulate.


Haldane effect

Named after John Scott Haldane who first described the effect.

(hematology) The ability of hemoglobin to carry increased amounts of carbon dioxide in the deoxygenated state as opposed to the oxygenated state.


MCHC

Labs […] RBC [red blood cells] 5.0×10⁶/mm³ ¶ MCH [mean corpuscular hemoglobin] 28 pg ¶ MCHC 34 g/dL ¶ MCV [mean corpuscular volume] 90 µm³ ¶ Plts [platelets] 192×10³/mm³

2009, Julia M. Koehler, Carrie Maffeo, “Chronic Asthma”, in Terry L. Schinghammer, Julia M. Koehler, editors, Pharmacotherapy Casebook: A Patient-Focused Approach, 7th edition, McGraw Hill, →DOI, →ISBN, page 79:

mean corpuscular hemoglobin concentration#English

(hematology) Initialism of mean corpuscular hemoglobin concentration.

Mean corpuscular hemoglobin concentration


random glucose

(medicine, hematology) A sample of glucose that has been collected during a blood test at a random time, prior to any fasting or dietary changes.


fasting glucose

(medicine, hematology) A sample of glucose that has been collected during a blood test, after a period of fasting or dietary changes.


fecal occult blood

fecal occult blood (countable and uncountable, plural fecal occult bloods)

(gastroenterology, hematology) The presence of blood in the feces that is not visibly apparent.