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pyrite
pyro-
pyrocatechol
pyrocellulose
pyrochemical
pyroclastic
pyroconductivity
pyroelectricity
pyrogallol
pyrogen
pyrogenic
pyrography
pyroligneous acid
pyrolusite
pyrolysate
pyrolyse
pyrolysis
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pyrogallol
py·ro·gal·lol [ prō gá làwl ]


noun 
Definition:
 
white crystalline photographic developer: a lustrous white crystalline organic compound that is bitter and toxic. Use: photographic developer, absorbent for oxygen in gas analysis. C6H6H3
[pyro- + Latin galla "oak apple"]

py·ro·gal·lic [ prō gállik ] adjective
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