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filter feeder

an aquatic animal that feeds on particles or small organisms strained out of water by circulating them through its system: includes most of the stationary feeders, as clams, oysters, barnacles, corals, sea squirts, and sponges.
Origin of filter feeder
1925-30 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for filter feeder
  • The place for a filter feeder is out in the current.
  • Because this species is a filter feeder, numerous close-set gill rakers are found in the gill chamber.
  • The razor clam, a filter feeder, relies on plankton for food.
  • The purple bean is a filter feeder, taking algae and other microorganisms from the water column.
  • The purple bean is a filter feeder, taking algae, and other microorganisms from the water column.
  • Daphnia is an efficient filter feeder and can reduce algae populations quickly, thus increasing water transparency.
  • Oysters are a key indicator of water quality and also improve water quality as a filter feeder.
filter feeder in Science
filter feeder  
An aquatic animal, such as a clam or sponge, that feeds by filtering tiny organisms or fine particles of organic material from currents of water that pass through it.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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