Definition of para-aminobenzoic acid in English:

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para-aminobenzoic acid

Pronunciation: /ˌparə əˌmēnōˌbenˌzōik ˈasid/
(abbreviation PABA)


A crystalline acid that is widely distributed in plant and animal tissue. It has been used to treat rickettsial infections and is widely used in suntan lotions and sunscreens to absorb ultraviolet light.
  • Chemical formula: NH2C6H4COOH.
Example sentences
  • Cyclodextrin can act as an efficient inhibitor of the photosensitized dimerization of thymine by para-aminobenzoic acid in aqueous solution.
  • Some supplement manufacturers include herbs like black cohosh or nonessential nutrients like para-aminobenzoic acid in their multivitamins.
  • Folic acid is composed of three primary structures, a hetero-bicyclic pteridine ring, para-aminobenzoic acid, and glutamic acid.

For editors and proofreaders

Syllabification: par·a-a·mi·no·ben·zo·ic ac·id

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