Noun
English Wikipedia has an article on:hipposudoric acidWikipedia
hipposudoric acid (uncountable)
(organic chemistry) A red quinoid carboxylic acid 3-carboxymethyl-5-hydroxy-1,4,8-trioxo-4,8-dihydro-1H-fluorene-9-carboxylic acid present in the skin secretion of the hippopotamus