noun Chemistry.

any of the class of compounds containing the structural unit R2SiO, where R is an organic group or hydrogen.

Origin of siloxane

First recorded in 1920–25; sil(icon) + ox(ygen) + -ane Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for siloxane



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 polymersSee also silicone

Word Origin for siloxane

C20: from sil (icon) + ox (ygen) + (meth) ane
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012