/ Thesaurus / P Synonyms of periodic apnea of the newborn Find synonyms for: Noun1. periodic apnea of the newborn, apneausage: irregular breathing of newborns; periods of rapid breathing followed by apnea; believed to be associated with sudden infant death syndromeWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: diaphanous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language