Bible Dictionaries
Protocatechuic

Webster's Dictionary

(a.) Pertaining to, derived from, or designating, an organic acid which is obtained as a white crystalline substance from catechin, asafetida, oil of cloves, etc., and by distillation itself yields pyrocatechin.

Bibliography Information
Webster, Noah. Entry for 'Protocatechuic'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​p/protocatechuic.html. 1828.