plural noun
Phaeo·​phy·​ce·​ae | \ -fis-\

Definition of Phaeophyceae

in some classifications
: a class comprising the brown algae and being coextensive with the division Phaeophyta

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Other Words from Phaeophyceae

phaeophycean \ ¦⸗⸗¦fishən \ adjective or noun
phaeophyceous \ -​shəs \ adjective

History and Etymology for Phaeophyceae

New Latin, from phaeo- + -phyceae

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to reflect, repel, echo, or resound

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