yellow-green algae: Meaning and Definition of

yel'low-green al'gae

Pronunciation: [key]
— Biol. Biol.
  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.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.