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Definition of: pyrocatechol
(pī′rə·kat′ə·kōl, -chōl, -kol, pir′ə-) noun Chem.
A white crystalline phenol compound, C6H6O2, contained in various barks, originally obtained when catechin was subjected to dry distillation: used in photography as a developer and in medicine. Also py′ro·cat′e·chin (-kin, -chin). [<PYRO- + CATECH(U) + (PHEN)OL]
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