"ar-" meaning in English

See ar- in All languages combined, or Wiktionary

Prefix

Etymology: Extracted from the word aromatic. Head templates: {{head|en|prefix|head=ar-|sort=}} ar-, {{en-prefix|head=ar-}} ar-
  1. (organic chemistry) Forming classification names for classes of organic compounds that contain a carbon skeleton and one or more aromatic rings. Tags: morpheme Categories (topical): Organic chemistry, Chemical notation
    Sense id: en-ar--en-prefix-H3V60kF1 Disambiguation of Chemical notation: 45 55 Categories (other): English entries with incorrect language header, Pages with 5 entries Disambiguation of English entries with incorrect language header: 51 49 Disambiguation of Pages with 5 entries: 24 22 22 19 3 3 2 3 Topics: chemistry, natural-sciences, organic-chemistry, physical-sciences
The following are not (yet) sense-disambiguated
Etymology number: 1

Prefix

Etymology: Shortened from area (because the function describes the area under a hyperbola), by analogy with arc-, the corresponding prefix for the circular trigonometric functions. Head templates: {{head|en|prefix|head=|sort=}} ar-, {{en-prefix}} ar-
  1. (trigonometry) Used to form the names of inverse hyperbolic functions, and the symbols for these functions. Tags: morpheme Categories (topical): Trigonometry, Chemical notation, Hyperbolic functions, Trigonometric functions Synonyms: arc- [proscribed, sometimes], a-, -1
    Sense id: en-ar--en-prefix-SZkj7cvi Disambiguation of Chemical notation: 45 55 Disambiguation of Hyperbolic functions: 23 77 Disambiguation of Trigonometric functions: 33 67 Categories (other): English entries with incorrect language header, Pages with 5 entries Disambiguation of English entries with incorrect language header: 51 49 Disambiguation of Pages with 5 entries: 24 22 22 19 3 3 2 3 Topics: mathematics, sciences, trigonometry
The following are not (yet) sense-disambiguated
Etymology number: 2
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          "text": "Potassium permanganate oxidizes ac-tetrahydronaphtylamine to o-hydrocinnam-carboxylic acid (p. 245); ar-tetrahydronaphthylamine, however, because of the oxidation of its amided benzene nucleus, is changed to adipic acid together with oxalic acid (B. 22, 767): […]"
        },
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          "ref": "1919 January 10, C. J. West, abstract of G. Schroeter and K. Thomas, “Transformation of tetrahydronaphthalene (tetralin) in the animal body”; in American Chemical Society, Chemical Abstracts, Volume 13, Number 1, page 43",
          "text": "ar-Tetrahydro-α-carbamidonaphthalene, C₁₁H₁₄ON₂, crystallized in square plates from alc., soften at 198° and melts at about 206° (quickly heated, at 212°)."
        },
        {
          "ref": "2006, Amit Arora, Aromatic Organic Chemistry, Discovery Publishing House, published 2007, →ISBN, page 173:",
          "text": "1-Naphthylamine is reduced by sodium and isopentanol to ar'''-tetrahydro-1-naphthylamine; the prefix ar- is the abbreviation of aromatic and indicates that the four hydrogen atoms are not in the ring containing the amino-group: […]",
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        "(organic chemistry) Forming classification names for classes of organic compounds that contain a carbon skeleton and one or more aromatic rings."
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        "morpheme"
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          "text": "Potassium permanganate oxidizes ac-tetrahydronaphtylamine to o-hydrocinnam-carboxylic acid (p. 245); ar-tetrahydronaphthylamine, however, because of the oxidation of its amided benzene nucleus, is changed to adipic acid together with oxalic acid (B. 22, 767): […]"
        },
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          "ref": "1919 January 10, C. J. West, abstract of G. Schroeter and K. Thomas, “Transformation of tetrahydronaphthalene (tetralin) in the animal body”; in American Chemical Society, Chemical Abstracts, Volume 13, Number 1, page 43",
          "text": "ar-Tetrahydro-α-carbamidonaphthalene, C₁₁H₁₄ON₂, crystallized in square plates from alc., soften at 198° and melts at about 206° (quickly heated, at 212°)."
        },
        {
          "ref": "2006, Amit Arora, Aromatic Organic Chemistry, Discovery Publishing House, published 2007, →ISBN, page 173:",
          "text": "1-Naphthylamine is reduced by sodium and isopentanol to ar'''-tetrahydro-1-naphthylamine; the prefix ar- is the abbreviation of aromatic and indicates that the four hydrogen atoms are not in the ring containing the amino-group: […]",
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Download raw JSONL data for ar- meaning in English (3.8kB)


This page is a part of the kaikki.org machine-readable English dictionary. This dictionary is based on structured data extracted on 2025-01-23 from the enwiktionary dump dated 2025-01-20 using wiktextract (0c0c1f1 and 4230888). 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.