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lateral line
noun
- 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.
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.
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Word History and Origins
Origin of lateral line1
First recorded in 1865–70
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