/ Thesaurus / C Synonyms of counter tube Find synonyms for: Noun1. counter tube, measuring instrument, measuring system, measuring deviceusage: a measuring instrument for counting individual ionizing eventsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: jaundice Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language