Breadcrumb Home > Thesaurus Cite Synonyms of arachnoid Find synonyms for: Noun1. arachnoid, arachnoid membrane, meninx, meningesusage: the middle of the 3 meninges2. arachnid, arachnoid, arthropodusage: air-breathing arthropods characterized by simple eyes and four pairs of legsAdjective1. arachnoid, arachnidian, spidery, spiderlike, spiderlyusage: relating to or resembling a member of the class ArachnidaWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.See also: arachnoid (Dictionary) Related Content Daily Word Quiz: erpsichore Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language Synonyms Index