blue-green algae


plural noun Biology.

a widely distributed group of predominantly photosynthetic prokaryotic organisms of the subkingdom Cyanophyta, resembling phototrophic bacteria, occurring singly or in colonies in diverse habitats: some species can fix atmospheric nitrogen.

Nearby words

  1. blue-eyed grass,
  2. blue-eyed mary,
  3. blue-eyed soul,
  4. blue-green,
  5. blue-green alga,
  6. blue-headed vireo,
  7. blue-jeaned,
  8. blue-leg,
  9. blue-on-blue,
  10. blue-pencil

Origin of blue-green algae

First recorded in 1895–1900

Also called cyanobacteria.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019


British Dictionary definitions for blue-green algae

blue-green algae

pl n

the former name for cyanobacteria
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012