red algae


plural noun Biology.

marine algae of the phylum Rhodophyta, in which the chlorophyll is masked by a red or purplish pigment.

Origin of red algae

First recorded in 1850–55

British Dictionary definitions for red algae

red algae

pl n

the numerous algae that constitute the phylum Rhodophyta, which contain a red pigment in addition to chlorophyll. The group includes carrageen, dulse, and laver Also called: red seaweed