alga noun. ['algǝ] Pl. algae ['aldʒi:, 'algi:]. M16.
[Latin = seaweed.]
Orig., seaweed; now, any of a large group of non-vascular mainly aquatic cryptogams capable of photosynthesis, including seaweeds and many unicellular and filamentous organisms. Also collect., the mass formed by such organisms.
blue-green alga: see BLUE adjective. brown alga: see BROWN adjective. green alga: see GREEN adjective. red alga: see RED adjective.

[TahlilGaran] English Dictionary ▲