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|Noun||1.||class Phaeophyceae - brown algae; mostly marine and littoral eukaryotic algae|
division Phaeophyta, Phaeophyta - coextensive with class Phaeophyceae; in some classifications subsumed in the division Heterokontophyta
brown algae - algae having the chlorophyll masked by brown and yellow pigments
Laminariales, order Laminariales - in some classifications coextensive with family Laminariaceae: marine brown algae of cold or polar seas
class - (biology) a taxonomic group containing one or more orders