chrysophyta: 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and golden-brown algae and diatoms: Xanthophyceae, Chrysophyceae, Bacillariophyceae; some classification systems superseded or subsumed by Heterokontophyta
division: (biology) a group of organisms forming a subdivision of a larger category
three-hitter: a game in which a pitcher allows the opposing team only 3 hits