/ Thesaurus / B Synonyms of blood platelet Find synonyms for: Noun1. platelet, blood platelet, thrombocyte, protoplasm, living substanceusage: tiny bits of protoplasm found in vertebrate blood; essential for blood clottingWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: tranquil Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language