Breadcrumb Home > Thesaurus > Y Synonyms of ylem Find synonyms for: Noun 1. ylem, matter usage: (cosmology) the original matter that (according to the big bang theory) existed before the formation of the chemical elements WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of ylem (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: pyknic Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language