Word.ws English Dictionary

Plural of alga

irregular plural

The plural of alga is algae.

Forms of alga

Singularalga /ˈæl.ɡə/
Pluralalgae /ˈæl.d͡ʒi/
Countablecountable

Algae in a sentence

  • A lichen is a fungus with symbiotic algae among its cells.From the entry symbiotic
  • The conservation project depleted the lake of algae.From the entry deplete
  • If the water stagnates, algae will grow.From the entry stagnate
  • I add algicide to my aquarium to eliminate the green scum of algae that forms on the glass.From the entry algicide
  • Myxophagan beetles are adapted to feed on algae.From the entry myxophagan

Meaning of alga

  1. noun Any of many aquatic photosynthetic organisms, including the seaweeds, whose size ranges from a single cell to giant kelps and whose biochemistry and forms are very diverse, some being eukaryotic.

Full definition of alga

Nouns ending in -a: plural -ae

Questions about the plural of alga

What is the plural of alga?
The plural of alga is algae.
Is alga countable?
Alga is a countable noun.

Source and license

Adapted from Wiktionary: alga (page history and authors) and the entries of its forms. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out forms marked obsolete, archaic, rare or dialectal and added the examples. Wiktionary data of 2026-09-02.

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Cite this page: “Plural of alga.” Word.ws, https://word.ws/plural/alga. Based on Wiktionary, CC BY-SA 4.0.