'Pyrocatechin' definitions:
Definition of 'Pyrocatechin'
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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]
