alga, algae - primitive chlorophyll-containing mainly aquatic eukaryotic organisms lacking true stems and roots and leaves

division Rhodophyta, Rhodophyta - lower plants; mostly marine and littoral eukaryotic algae

sea moss - any of various red algae having graceful rose to purple fronds (e.g. dulse or carrageen)

carageen, carrageen, carragheen, Chondrus crispus, Irish moss - dark purple edible seaweed of the Atlantic coasts of Europe and North America

dulse, Rhodymenia palmata - coarse edible red seaweed

red laver, laver - edible red seaweeds

carpospore - a nonmotile spore of red algae