'catechol' definitions:
Definition of 'catechol'
From: GCIDE
- Pyrocatechin \Pyr`o*cat"e*chin\, n. [Pyro- + catechu.] (Chem.) A white crystalline substance, C6H4(OH)2, of the phenol series, found in various plants; -- so called because first obtained by distillation of gum catechu. Called also catechol, oxyphenol. etc. [1913 Webster]
Definition of 'catechol'
From: GCIDE
- catechol \cat"e*chol\ (k[a^]t"[e^]*k[add]l`), n. [.] any of a group of chemicals having a benzene ring substituted with two hydroxyl groups in ortho position, especially ortho-dihydroxybenzene itself (C6H6O2), also called pyrocatechol, used in photography and as a reagent. [PJC]