Alga Definition

ălgə
algae
noun
Any of numerous photosynthetic organisms of aquatic or moist habitats, ranging in size from single-celled diatoms to large seaweeds such as kelp, and characterized by a lack of complex organs and tissues. Once classified within the plant kingdom, the algae are now considered to include several unrelated groups belonging to different kingdoms.
American Heritage

(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.

Wiktionary
Synonyms:

Other Word Forms of Alga

Noun

Singular:
alga
Plural:
algae

Origin of Alga

  • Latin seaweed

    From American Heritage Dictionary of the English Language, 5th Edition

Find Similar Words

Find similar words to alga using the buttons below.

Words Starting With

Words Ending With

Unscrambles

alga