any of a class of compounds containing alternate silicon and oxygen atoms with the silicon atoms bound to hydrogen atoms or organic groups. Many are highly complex polymers
See also silicone
Word origin
C20: from sil(icon) + ox(ygen) + (meth)ane
siloxane in American English
(sɪˈlɑkseɪn)
noun
any of a class of compounds, varying from liquids to hard resins, whose molecules are composed of chains of alternate silicon and oxygen atoms, usually with hydrogen or hydrocarbon groups attached to the free valences of the silicon atoms