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lateral line

noun
1.
the line, or system of lines, of sensory structures along the head and sides of fishes and amphibians, by which the animal is believed to detect water current and pressure changes and vibrations.
Origin
1865-1870
1865-70
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for lateral line
  • They have a lateral line down their whole body that senses motion, but maybe it does more than that.
  • The lateral line is arched toward the spiny dorsal fin.
  • The lateral line is incomplete, ending near the posterior end of the soft dorsal fin.
  • Juveniles have two light bands along the side, one on the lateral line and a smaller one below the lateral line.
  • The blotches continue laterally and blend into the olive-yellow venter creating a jagged-edged lateral line.
lateral line in Science
lateral line  
A series of tubelike canals along the head and sides of fish and some amphibians by which vibrations, as from water currents, and changes in pressure are detected.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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