pyrogallol
noun
py·ro·gal·lol
ˌpī-rō-ˈga-ˌlȯl 
-ˌlōl;
-ˈgȯ-
: a poisonous bitter crystalline phenol C6H6O3 with weak acid properties that is usually obtained by pyrolysis of gallic acid and used especially as a mild reducing agent (as in photographic developing)
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“Pyrogallol.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pyrogallol. Accessed 4 Nov. 2025.
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pyrogallol
noun
py·ro·gal·lol
-ˈgal-ˌȯl
-ˌōl; -ˈgȯ-ˌlȯl
-ˌlōl
-ˌōl; -ˈgȯ-ˌlȯl
-ˌlōl
: a poisonous crystalline phenol C6H6O3 formerly used as a topical antimicrobial (as in the treatment of psoriasis)
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