/ Thesaurus / R Synonyms of rhinoptera bonasus Find synonyms for: Noun1. cownose ray, cow-nosed ray, Rhinoptera bonasus, eagle rayusage: large ray found along eastern coast of North AmericaWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: abominable Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language