[mass noun](Biology)a common single-celled green alga of both terrestrial and aquatic habitats, frequently turning stagnant water an opaque green (生)小球藻属绿藻,小球藻
Genus Chlorella, division Chlorophyta (or phylum Chlorophyta, kingdom Protista) 小球藻属,绿藻门(或原生生物界绿藻门)