Breadcrumb Home > Thesaurus > D Synonyms of deuterium Find synonyms for: Noun 1. deuterium, heavy hydrogen, hydrogen atom, isotope usage: an isotope of hydrogen which has one neutron (as opposed to zero neutrons in hydrogen) WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of deuterium (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: persiflage Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language