Alga

//ˈæl.ɡə// noun

Definitions

Noun
  1. 1
    Any of many aquatic photosynthetic organisms, including the seaweeds, whose size ranges from a single cell to giant kelps and whose biochemistry and forms are very diverse, some being eukaryotic.

    "For example, the antitumour depsipeptide kahalalide F was isolated from the opisthobranch mollusc Elysia rufescens, and is used by both the mollusc and its dietary alga Bryopsis spp."

  2. 2
    primitive chlorophyll-containing mainly aquatic eukaryotic organisms lacking true stems and roots and leaves wordnet

Etymology

From Latin alga.

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