Ar-
prefix ·Rare ·Advanced level
Definitions
- 1 Forming classification names for classes of organic compounds that contain a carbon skeleton and one or more aromatic rings. morpheme
"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): […]"
- 2 Used to form the names of inverse hyperbolic functions, and the symbols for these functions. morpheme
Synonyms
All synonymsExample
More examples"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): […]"
Etymology
Extracted from the word aromatic.
Shortened from area (because the function describes the area under a hyperbola), by analogy with arc-, the corresponding prefix for the circular trigonometric functions.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.