/ Thesaurus / H Synonyms of hypocapnia Find synonyms for: Noun1. hypocapnia, acapnia, physical condition, physiological state, physiological conditionusage: a state in which the level of carbon dioxide in the blood is lower than normal; can result from deep or rapid breathingWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language