/ Thesaurus / P Synonyms of phaeophyceae Find synonyms for: Noun1. Phaeophyceae, class Phaeophyceae, classusage: brown algae; mostly marine and littoral eukaryotic algaeWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language