Algae :  (noun)

1: primitive chlorophyll-containing mainly aquatic eukaryotic organisms lacking true stems and roots and leaves [syn: alga]

Ectocarpales, Iceland moss, Irish moss, Phaeophyceae, autophyte, bean, bracken, brown algae, climber, conferva, confervoid, creeper, diatom, dulse, fern, fruits and vegetables, fucoid, fucus, fungi, fungus, grapevine, green algae, gulfweed, herb, heterophyte, ivy, kelp, legume, lentil, liana, lichen, liverwort, mold, molds, moss, mushroom, parasite, parasitic plant, pea, perthophyte, phytoplankton, plankton, planktonic algae, plant families, pond scum, puffball, pulse, red algae, reindeer moss, rockweed, rust, saprophyte, sargasso, sargassum, scum, sea lentil, sea moss, sea wrack, seaweed, smut, succulent, thallogens, toadstool, vetch, vine, wort, wrack,