Definitions for "Filter Feeder"
Keywords:  strain, baleen, plankton, whale, clams
A small animal that feeds off food suspended in the water, and collects this food with the aid of hairs, specialized mouthparts, catch nets, or other structures.
An organism that feeds upon much smaller organisms, that are suspended in water or air, by means of a straining device.
Any organism that filters small animals, plants, and detritus from water or fine sediments for food. Organs used for filtering include gills in clams and oysters, baleen in whales, and specialized appendages in crustaceans and marine worms.
The American Heritage® Dictionary of the English Language: Fourth Edition. 2000.