para amino-benzoic acids

para-aminobenzoic acid

[par-uh-uh-mee-noh-ben-zoh-ik, -am-uh-noh-]
noun Chemistry, Biochemistry.
part of the folic acid molecule, a white or yellowish, crystalline, slightly water-soluble solid, C 7 H 7 NO 2 , 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:
1905–10; para-1 + amino- + benzoic acid

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Collins
World English Dictionary
para-aminobenzoic acid
 
n
biochem an acid present in yeast and liver: used in the manufacture of dyes and pharmaceuticals. Formula: C6H4(NH2)COOH

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

para-aminobenzoic acid par·a-a·mi·no·ben·zo·ic acid (pār'ə-ə-mē'nō-běn-zō'ĭk, -ām'ə-)
n.
PABA.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
para-aminobenzoic acid   (pār'ə-ə-mē'nō-běn-zō'ĭk, -ām'ə-)  Pronunciation Key 
See PABA.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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