Found 2 items, similar to alga.
English → English (WordNet) Definition: alga alga n : primitive chlorophyll-containing mainly aquatic eukaryotic organisms lacking true stems and roots and leaves [syn: algae]
English → English (gcide) Definition: Alga Alga \Al"ga\, n.; pl. Alg[ae] or algae. [L., seaweed.] (Bot.) A kind of seaweed; pl. the class of cellular cryptogamic plants which includes the black, red, and green seaweeds, as kelp, dulse, sea lettuce, also marine and fresh water conferv[ae], etc. The algae are primitive chlorophyll-containing mainly aquatic eukaryotic organisms lacking true stems and roots and leaves. [1913 Webster + WordNet 1.5]