/ Thesaurus / E Synonyms of elasmobranchii Find synonyms for: Noun1. Elasmobranchii, subclass Elasmobranchii, Selachii, subclass Selachii, classusage: sharks; rays; dogfishes; skatesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language