Phaeophyceae

 
Pronunciation: /ˌfʌɪə(ʊ)ˈfʌɪsiː/

plural noun

Botany
  • a class of lower plants that comprises the brown algae.
    • Class Phaeophyceae, division Heterokontophyta (or phylum Heterokonta, kingdom Protista); formerly division Phaeophyta

Origin:

modern Latin (plural), from Greek phaios 'dusky' + phukos 'seaweed'