Breadcrumb Home > Thesaurus > C Synonyms of crinoid Find synonyms for: Noun 1. crinoid, echinoderm usage: primitive echinoderms having five or more feathery arms radiating from a central disk Adjective 1. crinoid usage: of or relating to or belonging to the class Crinoidea WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of crinoid (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: crepuscular Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language