anthranilic acid
noun
an·thra·nil·ic acid ˌan(t)-thrə-ˈni-lik- 
: a crystalline acid NH2C6H4COOH used as an intermediate in the manufacture of dyes (such as indigo), pharmaceuticals, and perfumes
Example Sentences
Recent Examples on the Web The blue fluorescence, seen only when the worms are under ultraviolet light, comes from anthranilic acid, an organic compound produced inside little granules that line the worm’s intestine. 
Christopher Crockett, Scientific American, 2 Aug. 2013 The drop in pH amplifies the anthranilic acid’s natural fluorescence, generating a blue flash that follows the calcium wave. Christopher Crockett, Scientific American, 2 Aug. 2013 This initial investigation led them to the discovery that the anthranilic acid fluoresces and the calcium wave triggers the event. Christopher Crockett, Scientific American, 2 Aug. 2013
Christopher Crockett, Scientific American, 2 Aug. 2013 The drop in pH amplifies the anthranilic acid’s natural fluorescence, generating a blue flash that follows the calcium wave. Christopher Crockett, Scientific American, 2 Aug. 2013 This initial investigation led them to the discovery that the anthranilic acid fluoresces and the calcium wave triggers the event. Christopher Crockett, Scientific American, 2 Aug. 2013 Word History
Etymology
anthranil- borrowed from German anthranil- (in Anthranilsäure "anthranilic acid," from anthra- —in Anthracen anthracene— + Anilin aniline) + -ic entry 1
First Known Use
1842, in the meaning defined above
Medical Definition
anthranilic acid
noun
an·thra·nil·ic acid ˌan(t)-thrə-ˌnil-ik-
: the ortho-substituted aminobenzoic acid NH2C6H4COOH used as an intermediate in the manufacture of dyes (as indigo), pharmaceuticals, and perfumes