Definition of semicircular canal
: any of three loop-shaped tubular parts of the inner ear that are filled with a watery fluid, are positioned at nearly right angles to each other, and play a role in the maintenance of balance and stabilization by detecting rotations or angular movements of the head
Note: Rotational and angular movements of the head cause the watery fluid in one or more of the semicircular canals to shift so that hair cells at the base of the canals bend and generate electrical signals which are transmitted to the brain by a branch of the auditory nerve.
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Time Traveler for semicircular canal
The first known use of semicircular canal was in 1694
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