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algae definition

al·gae (al′jē′)

plural noun sing. alga al′ga (-gə)

any of several divisions of simple photosynthetic organisms, esp. certain thallophytes, variously one-celled, colonial, or filamentous, containing chlorophyll and other pigments (esp. red and brown), and having no true root, stem, or leaf: algae are found in water or damp places, and include seaweeds and pond scum

Etymology: pl. of L alga, seaweed < IE base *el-, *ol-, to be moldy, putrid > Swed ul, rancid, Du uilig, rotten

Related Forms:

  • algal al′·gal (-gəl) adjective

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

Alternate definitions:

medical algae definition - medical

algae Synonyms

algae

pl.n.

seaweed, rockweed, scum, stonewort, dulse, sea lettuce, pond life, kelp, blue-green algae; see also seaweed.


Webster's New World Roget's A-Z Thesaurus Copyright © 1999 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

algae Usage Examples

Converse of subject

  • dominate: Lower infralittoral Sparse kelp park, dominated by foliose algae except where grazed.

Converse of object

  • single-cel: In the oceans around Antarctica, carbon uptake is carried out by minute single-celled algae.

Adjective modifier

  • blue-green: Water Quality In The Lake: Blue-green algae has appeared in the lake during late summer.

Modifies a noun

  • eater: Both are very peaceful community fish and the catfish is an algae eater and great tank clean... .. .

Noun used with modifier

  • freshwater: There are over 2,200 species of freshwater algae known to exist in the British Isles and there is nothing wrong with them as such.
algae usage examples (more)

The word usage examples above have been gathered from various sources to reflect current and historical usage. They do not represent the opinions of YourDictionary.com.

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MLA Style

"algae." Webster's New World College Dictionary. 2009

  • Your Dictionary. 3 July 2009
  • <www.yourdictionary.com/algae>

APA Style

algae. (2009). In Webster's New World College Dictionary

  • Retrieved July 3rd, 2009, from www.yourdictionary.com/algae

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