n. 藻类, 海藻

[机] 藻

[ noun ]
primitive chlorophyll-containing mainly aquatic eukaryotic organisms lacking true stems and roots and leaves
<noun.animal>

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]