pyrocinchonic acid
noun
py·ro·cinchonic acid
¦pī(ˌ)rō+…-
: an unstable dicarboxylic acid C4H6(COOH)2 obtained usually in the form of its crystalline anhydride by pyrolysis of cinchonic acid; dimethyl-maleic acid
Word History
Etymology
pyrocinchonic International Scientific Vocabulary pyr- + cinchonic