alga
/ˈælgə/noun
(pl. algae /-dʒiː/)
1- a simple, non-flowering, and typically aquatic plant of a large assemblage that includes the seaweeds and many single-celled forms. Algae contain chlorophyll but lack true stems, roots, leaves, and vascular tissue.藻类, 海藻。
1.1
- Divisions Chlorophyta (green algae), Heterokontophyta (brown algae), and Rhodophyta (red algae); some (or all) are frequently placed in the kingdom Protista.绿藻门, 褐藻门和红藻门; 其中一些（或全部）经常被归入原生生物界。
派生词
algal
adjective词源
mid 16th cent.: from Latin， 'seaweed'.