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silanol

n. 1 (context inorganic chemistry English) the silicon analogue of methanol SiH3OH 2 (context organic chemistry English) any hydroxy derivative of a silane, especially hydrocarbyl derivatives R3SiOH; an organosilanol

Wikipedia
Silanol

A silanol is a functional group in silicon chemistry with the connectivity Si–O–H. It is related to the hydroxy functional group (C–O–H) found in all alcohols. Silanols are often invoked as intermediates in organosilicon chemistry and silicate mineralogy.