Breadcrumb Home > Thesaurus > I Synonyms of interbrain Find synonyms for: Noun 1. diencephalon, interbrain, betweenbrain, thalmencephalon, neural structure usage: the posterior division of the forebrain; connects the cerebral hemispheres with the mesencephalon WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of interbrain (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: jactation Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language