para-aminobenzoic acid

[ par-uh-uh-mee-noh-ben-zoh-ik, -am-uh-noh- ]

nounChemistry, Biochemistry.
  1. part of the folic acid molecule, a white or yellowish, crystalline, slightly water-soluble solid, C7H7NO2, the para isomer of aminobenzoic acid: used chiefly in the manufacture of dyes and pharmaceuticals and in sunscreens to protect against ultraviolet light. Abbreviation: PABA

Origin of para-aminobenzoic acid

1
First recorded in 1905–10; para-1 + amino- + benzoic acid

Words Nearby para-aminobenzoic acid

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British Dictionary definitions for para-aminobenzoic acid

para-aminobenzoic acid

noun
  1. biochem an acid present in yeast and liver: used in the manufacture of dyes and pharmaceuticals. Formula: C 6 H 4 (NH 2)COOH

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for para-aminobenzoic acid

para-aminobenzoic acid

[ părə-ə-mē′nō-bĕn-zō′ĭk, -ăm′ə- ]


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