ar-とは 意味・読み方・使い方

接頭辞

ar-

1. (organic chemistry) Forming classification names for classes of organic compounds that contain a carbon skeleton and one or more aromatic rings.
   • 1900, Edgar Fahs Smith (English translator), R. Anschütz (German editor), Victor von Richter's Organic Chemistry: or, Chemistry of the Carbon Compounds, Third American Edition, Volume II, P. Blakiston's Son & Co., page 393:

     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): […]

   • 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:

     ar-Tetrahydro-α-carbamidonaphthalene, C₁₁H₁₄ON₂, crystallized in square plates from alc., soften at 198° and melts at about 206° (quickly heated, at 212°).

   • 2006, Amit Arora, Aromatic Organic Chemistry, Discovery Publishing House (2007), →ISBN, page 173:

     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: […]

語源 2

Shortened from area (because the function describes the area under a hyperbola), by analogy with arc-, the corresponding prefix for the circular trigonomic functions.

接頭辞

ar-

1. (mathematics, trigonometry) Used to form the names of inverse hyperbolic trigonometric functions, and the symbols for these functions.

   Synonyms: (sometimes proscribed) arc-, a-, −1

参照

• [1]
• [2]
• [3]

アナグラム

• RA, Ra

接尾辞

-ar

2. Of, near, or pertaining to; adjective suffix appended to various words, often nouns, to make an adjective form. Often added to words of Latin origin, but used with other words also.

   ‎pole + ‎-ar → ‎polar

   ‎line + ‎-ar → ‎linear

   ‎molecule + ‎-ar → ‎molecular

   ‎alveolus + ‎-ar → ‎alveolar

   ‎column + ‎-ar → ‎columnar

   Synonyms: -al, -an, -ary, -ese, -ic, -id, -ish, -like, -oid, -ory, -ous, -y

使用する際の注意点

See usage notes at -al.

語源 2

From Latin -ārius or French -aire.

接尾辞

-ar

1. Forming nouns such as vicar, exemplar, bursar, etc.

語源 3

From Middle English -ar, -are, variant of Middle English -ere, from 古期英語 -ere. More at -er.

接尾辞

-ar

1. Forming nouns such as beggar, liar, pedlar, etc.

語源 4

Clipping of star.; modelled after the earlier coinages pulsar and quasar.

接尾辞

-ar

1. (astronomy) Used to form names of star types, such as magnetar, collapsar, etc.

等位語

派生語

アナグラム

• RA, Ra

Latin

別の表記

• -āre
• -al, -āle (when not preceded by l)
• -ārium

語源

From apocope of final e in -āre, neuter of -āris, dissimilated form (after a preceding l) of -ālis.

接尾辞

-ar n (genitive -āris); third declension

1. noun-forming suffix

語形変化

Third-declension noun (neuter, “pure” i-stem).

派生語

アナグラム

• RA, Ra

名詞

A/R (uncountable)

1. (accounting) Initialism of accounts receivable.

アナグラム

• RA, Ra

語源 1

From Middle English *ar, arres pl, from earlier *er.

名詞

ar (複数形 ars)

1. The name of the Latin-script letter R/r.

   All the ars in the inscription.

   • 2004 Will Rogers, The Stonking Steps, p. 170

     I have drunk en-ee-cee-tee-ay-ar from the ef-ell-oh-doubleyou-ee-ar-ess in his gee-ay-ar-dee-ee-en many a time.

   • 2016 CCEB, Communications Instructions Radiotelephone Procedures: ACP125 (G), p. 3-5

     RV [is spoken] as "ar-vee" instead of "I SPELL Romeo Victor".

派生語

• ar-dropping
• arless

参考

• (Latin-script letter names) letter; a, bee, cee, dee, e, ef, gee, aitch, i, jay, kay, el, em, en, o, pee, cue, ar, ess, tee, u, vee, double-u, ex, wye, zee / zed

間投詞

ar

1. (UK, West Country, West Midlands) Alternative form of arr

派生語

• oh ar

不変化詞

ar

1. (UK, West Country, West Midlands) Alternative form of arr

動詞

ar

1. Obsolete spelling of are
   • 1570, Roger Ascham, The Scholemaster:

     But commonlie, the fairest bodies, ar bestowed on the foulest purposes.

アナグラム

• RA, Ra

発音

• IPA^(key): /ɑːr/

語源 1

From Proto-West Germanic *aiʀu (“respect, honour”). Cognate with German Ehre.

別の表記

• āre

名詞

ār f

1. honour, glory, grace

語形変化

派生語

• ārstafas (“help, kindness”)
• woroldār (“worldly honour”)

派生した語

• Middle English: ore, oore, or, ȝore; aore, are, ære; ar, are

語源 2

From Proto-West Germanic *aiʀ.

Cognate with Old Norse eir (“brass, copper”), German ehern (“of metal, of iron”), Gothic ������ (aiz, “ore”), from Proto-Indo-European *áyos, h₂éyos. Compare Dutch oer (“iron-holding earth”). Compare Latin aes (“bronze, copper”), Avestan ���������� (aiiah), Sanskrit अयस् (áyas, “copper, iron”).

名詞

ār n

1. ore, brass, copper

語形変化

派生した語

• Middle English: ore, hure, oer, or, oor, oore, oure, ure (merged with ōra)
  • English: ore
  • Scots: ure, uir

語源 3

From Proto-West Germanic *airu (“oar”), from Proto-Germanic *airō (“oar”). Cognate with Old Norse ár, Danish åre, Swedish åra.

名詞

ār f

1. oar

語形変化

派生した語

• Middle English: ore, hore, oore; are, aurre
  • English: oar
  • Scots: air

語源 4

From Proto-West Germanic *airu (“messenger”), from Proto-Germanic *airuz. Cognate with Old Saxon ēru, Old Norse árr, Gothic ���������� (airus).

名詞

ār m

1. messenger, herald
   • 8^th-11^th century, Beowulf, ll. 335-6:

     Ic eom Hroðgares ar ond ombiht.

     I am Hrothgar's herald and officer.

2. angel
3. missionary

語形変化