ALL meanings of alga
al·gae
A a - noun alga seaweed: singular form 1
- noun alga A simple nonflowering plant of a large group that includes the seaweeds and many single-celled forms . Algae contain chlorophyll but lack true stems, roots, leaves, and vascular tissue. 1
- noun alga (biology) Any of many aquatic photosynthetic organisms, whose size ranges from a single cell to giant kelps and whose form is very diverse; some are eukaryotic and some prokaryotic; includes the seaweeds. 0