/ Thesaurus / S Synonyms of silica gel Find synonyms for: Noun1. silica gel, colloidusage: a porous form of silica that is highly absorbentWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language