pyrogallol


py·ro·gal·lol

noun
\-ˈgal-ˌl, -ˌōl; -ˈg-ˌll, -ˌlōl\

Definition of PYROGALLOL

: a poisonous bitter crystalline phenol C6H6O3 with weak acid properties that is obtained usually by pyrolysis of gallic acid and that is used especially as a mild reducing agent (as in photographic developing) and in medicine as a topical antimicrobial (as in the treatment of psoriasis)

Seen & Heard

What made you want to look up pyrogallol? Please tell us where you read or heard it (including the quote, if possible).