yellow-green algae

American  

Or yellow green algae

noun

Biology.

1. a group of common single-celled and colonial algae of the phylum Chrysophyta, having mostly yellow and green pigments, occurring in soil and on moist rocks and vegetation and also as a slime or scum on ponds and stagnant waters.

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Etymology

Origin of yellow-green algae

First recorded in 1925–30