See MAC in All languages combined, or Wiktionary
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"Initialism of maximum allowable concentration, the maximum concentration of a pollutant which is considered harmless to healthy adults during their working hours, assuming they breathe uncontaminated air at all other times."
],
"links": [
[
"chemistry",
"chemistry"
]
],
"raw_glosses": [
"(chemistry) Initialism of maximum allowable concentration, the maximum concentration of a pollutant which is considered harmless to healthy adults during their working hours, assuming they breathe uncontaminated air at all other times."
],
"tags": [
"abbreviation",
"alt-of",
"countable",
"initialism",
"uncountable"
],
"topics": [
"chemistry",
"natural-sciences",
"physical-sciences"
]
},
{
"alt_of": [
{
"word": "mandatory access control"
}
],
"categories": [
"English initialisms",
"en:Computer security"
],
"glosses": [
"Initialism of mandatory access control."
],
"links": [
[
"computer security",
"computer security"
],
[
"mandatory access control",
"w:mandatory access control"
]
],
"qualifier": "computer security",
"raw_glosses": [
"(computer security) Initialism of mandatory access control."
],
"tags": [
"abbreviation",
"alt-of",
"countable",
"initialism",
"uncountable"
]
},
{
"alt_of": [
{
"extra": "the portion of Ethernet, Wi-Fi 802.11 wireless, Bluetooth, FDDI, ATM, and Fibre Channel networks that controls which hardware devices have access to the media over which signals are sent.",
"word": "media access control"
}
],
"categories": [
"English initialisms",
"English terms with quotations",
"en:Networking"
],
"examples": [
{
"bold_text_offsets": [
[
27,
30
],
[
34,
37
],
[
51,
54
],
[
58,
61
],
[
98,
101
],
[
105,
108
],
[
125,
128
]
],
"ref": "2025 April 17, “Provider Backbone Bridging (PBB) and EVPN Integration Overview”, in Juniper Networks, archived from the original on 01 Jul 2025:",
"text": "When operating on customer MAC (C-MAC) and service MAC (S-MAC) addresses, PBB uses a new backbone MAC (B-MAC) address. The B-MAC address is added at the edge of the PBB network, that is administered by a carrier VPN or a carrier-of-carriers VPN.",
"type": "quotation"
}
],
"glosses": [
"Initialism of media access control: the portion of Ethernet, Wi-Fi 802.11 wireless, Bluetooth, FDDI, ATM, and Fibre Channel networks that controls which hardware devices have access to the media over which signals are sent."
],
"links": [
[
"networking",
"networking#Noun"
],
[
"Ethernet",
"Ethernet"
],
[
"Wi-Fi",
"Wi-Fi"
],
[
"Bluetooth",
"Bluetooth"
],
[
"FDDI",
"FDDI"
],
[
"ATM",
"ATM"
],
[
"network",
"network"
],
[
"hardware",
"hardware"
],
[
"device",
"device"
],
[
"media",
"media"
]
],
"raw_glosses": [
"(networking) Initialism of media access control: the portion of Ethernet, Wi-Fi 802.11 wireless, Bluetooth, FDDI, ATM, and Fibre Channel networks that controls which hardware devices have access to the media over which signals are sent."
],
"tags": [
"abbreviation",
"alt-of",
"countable",
"initialism",
"uncountable"
],
"topics": [
"computing",
"engineering",
"mathematics",
"natural-sciences",
"networking",
"physical-sciences",
"sciences"
]
},
{
"alt_of": [
{
"word": "mean aerodynamic chord"
}
],
"categories": [
"English initialisms",
"en:Aviation"
],
"glosses": [
"Initialism of mean aerodynamic chord."
],
"links": [
[
"aviation",
"aviation"
]
],
"raw_glosses": [
"(aviation) Initialism of mean aerodynamic chord."
],
"tags": [
"abbreviation",
"alt-of",
"countable",
"initialism",
"uncountable"
],
"topics": [
"aeronautics",
"aerospace",
"aviation",
"business",
"engineering",
"natural-sciences",
"physical-sciences"
]
},
{
"alt_of": [
{
"word": "mid-air collision"
}
],
"categories": [
"English initialisms",
"en:Aviation"
],
"glosses": [
"Initialism of mid-air collision."
],
"links": [
[
"aviation",
"aviation"
],
[
"mid-air",
"mid-air#English"
],
[
"collision",
"collision#English"
]
],
"raw_glosses": [
"(aviation) Initialism of mid-air collision."
],
"tags": [
"abbreviation",
"alt-of",
"countable",
"initialism",
"uncountable"
],
"topics": [
"aeronautics",
"aerospace",
"aviation",
"business",
"engineering",
"natural-sciences",
"physical-sciences"
]
},
{
"alt_of": [
{
"word": "message authentication code"
}
],
"categories": [
"English initialisms",
"en:Cryptography"
],
"glosses": [
"Initialism of message authentication code."
],
"links": [
[
"cryptography",
"cryptography"
],
[
"message authentication code",
"w:message authentication code"
]
],
"raw_glosses": [
"(cryptography) Initialism of message authentication code."
],
"tags": [
"abbreviation",
"alt-of",
"countable",
"initialism",
"uncountable"
],
"topics": [
"computing",
"cryptography",
"engineering",
"mathematics",
"natural-sciences",
"physical-sciences",
"sciences"
]
},
{
"alt_of": [
{
"word": "merchant aircraft carrier"
}
],
"categories": [
"English initialisms",
"English terms with historical senses",
"en:Aviation",
"en:Military",
"en:Nautical"
],
"glosses": [
"Initialism of merchant aircraft carrier."
],
"links": [
[
"military",
"military"
],
[
"nautical",
"nautical"
],
[
"aviation",
"aviation"
],
[
"merchant aircraft carrier",
"w:merchant aircraft carrier"
]
],
"raw_glosses": [
"(military, nautical, aviation, historical) Initialism of merchant aircraft carrier."
],
"tags": [
"abbreviation",
"alt-of",
"countable",
"historical",
"initialism",
"uncountable"
],
"topics": [
"aeronautics",
"aerospace",
"aviation",
"business",
"engineering",
"government",
"military",
"natural-sciences",
"nautical",
"physical-sciences",
"politics",
"transport",
"war"
]
},
{
"alt_of": [
{
"word": "magnetic accelerator cannon"
}
],
"categories": [
"English initialisms",
"en:Science fiction"
],
"glosses": [
"Initialism of magnetic accelerator cannon."
],
"links": [
[
"science fiction",
"science fiction"
],
[
"magnetic",
"magnetic#English"
],
[
"accelerator",
"accelerator#English"
],
[
"cannon",
"cannon#English"
]
],
"raw_glosses": [
"(science fiction) Initialism of magnetic accelerator cannon."
],
"tags": [
"abbreviation",
"alt-of",
"countable",
"initialism",
"uncountable"
],
"topics": [
"literature",
"media",
"publishing",
"science-fiction"
]
},
{
"alt_of": [
{
"word": "Migration Authorisation Code"
}
],
"categories": [
"British English",
"English initialisms",
"en:Telecommunications"
],
"glosses": [
"Initialism of Migration Authorisation Code."
],
"links": [
[
"telecommunications",
"telecommunications"
],
[
"Migration Authorisation Code",
"w:Migration Authorisation Code"
]
],
"raw_glosses": [
"(UK, telecommunications) Initialism of Migration Authorisation Code."
],
"tags": [
"UK",
"abbreviation",
"alt-of",
"countable",
"initialism",
"uncountable"
],
"topics": [
"communications",
"electrical-engineering",
"engineering",
"natural-sciences",
"physical-sciences",
"telecommunications"
]
},
{
"alt_of": [
{
"extra": "a part of the complement system of the innate immune system",
"word": "membrane attack complex"
}
],
"categories": [
"English initialisms",
"en:Immunology"
],
"glosses": [
"Initialism of membrane attack complex, a part of the complement system of the innate immune system."
],
"links": [
[
"immunology",
"immunology"
],
[
"membrane attack complex",
"membrane attack complex#English"
],
[
"complement system",
"complement system"
],
[
"innate immune system",
"innate immune system"
]
],
"raw_glosses": [
"(immunology) Initialism of membrane attack complex, a part of the complement system of the innate immune system."
],
"tags": [
"abbreviation",
"alt-of",
"countable",
"initialism",
"uncountable"
],
"topics": [
"immunology",
"medicine",
"sciences"
]
},
{
"alt_of": [
{
"extra": "a hardware module found in digital signal processors which performs a multiplication and adds the result of that operation to an accumulator in the same cycle, used extensively in implementations of digital filters, transforms, and codecs",
"word": "multiply and accumulate"
}
],
"categories": [
"English initialisms",
"en:Computing"
],
"glosses": [
"Initialism of multiply and accumulate, a hardware module found in digital signal processors which performs a multiplication and adds the result of that operation to an accumulator in the same cycle, used extensively in implementations of digital filters, transforms, and codecs."
],
"links": [
[
"computing",
"computing#Noun"
],
[
"multiply",
"multiply#English"
],
[
"and",
"and#English"
],
[
"accumulate",
"accumulate#English"
],
[
"hardware",
"hardware"
],
[
"module",
"module"
],
[
"digital",
"digital"
],
[
"signal",
"signal"
],
[
"processor",
"processor"
],
[
"multiplication",
"multiplication"
],
[
"add",
"add"
],
[
"result",
"result"
],
[
"accumulator",
"accumulator"
],
[
"cycle",
"cycle"
]
],
"raw_glosses": [
"(computing) Initialism of multiply and accumulate, a hardware module found in digital signal processors which performs a multiplication and adds the result of that operation to an accumulator in the same cycle, used extensively in implementations of digital filters, transforms, and codecs."
],
"tags": [
"abbreviation",
"alt-of",
"countable",
"initialism",
"uncountable"
],
"topics": [
"computing",
"engineering",
"mathematics",
"natural-sciences",
"physical-sciences",
"sciences"
]
},
{
"alt_of": [
{
"word": "Mycobacterium avium complex"
}
],
"categories": [
"English initialisms",
"en:Microbiology"
],
"glosses": [
"Initialism of Mycobacterium avium complex."
],
"links": [
[
"microbiology",
"microbiology"
],
[
"Mycobacterium avium complex",
"w:Mycobacterium avium complex"
]
],
"raw_glosses": [
"(microbiology) Initialism of Mycobacterium avium complex."
],
"tags": [
"abbreviation",
"alt-of",
"countable",
"initialism",
"uncountable"
],
"topics": [
"biology",
"microbiology",
"natural-sciences"
]
},
{
"alt_of": [
{
"word": "minimum alveolar concentration"
}
],
"categories": [
"English initialisms"
],
"glosses": [
"Initialism of minimum alveolar concentration."
],
"links": [
[
"minimum",
"minimum#English"
],
[
"alveolar",
"alveolar#English"
],
[
"concentration",
"concentration#English"
]
],
"raw_glosses": [
"(anesthesiology) Initialism of minimum alveolar concentration."
],
"tags": [
"abbreviation",
"alt-of",
"countable",
"initialism",
"uncountable"
],
"topics": [
"anesthesiology",
"medicine",
"sciences"
]
},
{
"alt_of": [
{
"word": "monitored anesthesia care"
}
],
"categories": [
"English initialisms"
],
"glosses": [
"Initialism of monitored anesthesia care."
],
"links": [
[
"monitored",
"monitored#English"
],
[
"anesthesia",
"anesthesia#English"
],
[
"care",
"care#English"
]
],
"raw_glosses": [
"(anesthesiology) Initialism of monitored anesthesia care."
],
"tags": [
"abbreviation",
"alt-of",
"countable",
"initialism",
"uncountable"
],
"topics": [
"anesthesiology",
"medicine",
"sciences"
]
}
],
"word": "MAC"
}
Download raw JSONL data for MAC meaning in English (12.8kB)
This page is a part of the kaikki.org machine-readable English dictionary. This dictionary is based on structured data extracted on 2025-12-29 from the enwiktionary dump dated 2025-12-20 using wiktextract (cdfa371 and 9905b1f). The data shown on this site has been post-processed and various details (e.g., extra categories) removed, some information disambiguated, and additional data merged from other sources. See the raw data download page for the unprocessed wiktextract data.
If you use this data in academic research, please cite Tatu Ylonen: Wiktextract: Wiktionary as Machine-Readable Structured Data, Proceedings of the 13th Conference on Language Resources and Evaluation (LREC), pp. 1317-1325, Marseille, 20-25 June 2022. Linking to the relevant page(s) under https://kaikki.org would also be greatly appreciated.