Breadcrumb Home > Thesaurus > E Synonyms of ectoblast Find synonyms for: Noun 1. ectoderm, exoderm, ectoblast, germ layer usage: the outer germ layer that develops into skin and nervous tissue WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of ectoblast (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: oungurk Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language