/ Thesaurus / R Synonyms of rhododendron californicum Find synonyms for: Noun1. coast rhododendron, Rhododendron californicum, rhododendronusage: medium-sized rhododendron of Pacific coast of North America having large rosy brown-spotted flowersWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: aversion Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language