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red algae

noun
1.
marine algae of the phylum Rhodophyta, in which the chlorophyll is masked by a red or purplish pigment.
Origin
1850-1855
1850-55
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for red algae
  • It's actually a gelatinous preparation of the cell walls of red algae, used to thicken the fruit filling.
  • One day, along the beach, tiny red algae blooms into a vast red tide.
  • Certain single-celled plants cells, such as green and red algae, have been themselves taken up by other cells to become plastids.
  • red algae is also said to alter the perceived color of snow.
British Dictionary definitions for red algae

red algae

plural noun
1.
the numerous algae that constitute the phylum Rhodophyta, which contain a red pigment in addition to chlorophyll. The group includes carrageen, dulse, and laver Also called red seaweed
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
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Encyclopedia Article for red algae

members of the division Rhodophyta (about 4,100 species), predominantly marine algae often found attached to other shore plants. Their morphological range includes filamentous, branched, feathered, and sheetlike thalli. In most species, thin protoplasmic connections provide continuity between cells. Their usual red or blue colour is the result of a masking of chlorophyll by phycobilin pigments (phycoerythrin and phycocyanin).

Learn more about red algae with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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4
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