WordNet (r) 3.0 (2006):

division Chrysophyta
    n 1: mostly freshwater eukaryotic algae having the chlorophyll
         masked by brown or yellow pigment; yellow-green and golden-
         brown algae and diatoms: Xanthophyceae, Chrysophyceae,
         Bacillariophyceae; some classification systems superseded
         or subsumed by Heterokontophyta [syn: Chrysophyta,
         division Chrysophyta]