Showing results for "green algae"

• plural of green alga.

green algae

American  

plural noun

1. any grass-green, chiefly freshwater algae of the phylum Chlorophyta, often growing on wet rocks, damp wood, or on the surface of stagnant water.

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green algae British  

plural noun

1. the algae of the phylum Chlorophyta, which possess the green pigment chlorophyll. The group includes sea lettuce and spirogyra

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Etymology

Origin of green algae

First recorded in 1900–05

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Example Sentences

See Examples For:

green algae

Then about 1.25 billion years ago, one of these photosynthesizing bacteria partnered with another one-celled organism to create green algae, one lineage of which became the ancestor of all plants.

From The Wall Street Journal ● Oct. 16, 2026

The answer, for that sample, was: mostly Desmodesmus, a green algae that gobbles up phosphorus and nitrogen.

From Slate ● Jun. 27, 2026

Officials have been using chemicals, including reportedly hydrogen peroxide, to clean a green algae bloom which has taken hold in the pool since it was re-filled following a paint job earlier this month.

From BBC ● Jun. 22, 2026

Instead of the previous blue-green algae, the new green algae is "just taking over," Paerl said.

From Barron's ● Jun. 21, 2026

It was nothing but shining green algae and shining green trees.

From "Life of Pi" by Yann Martel

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