/ Thesaurus / W Synonyms of william crookes Find synonyms for: Noun1. Crookes, William Crookes, Sir William Crookesusage: English chemist and physicist; discovered thallium; invented the radiometer and studied cathode rays (1832-1919)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language