semicircular canal(redirected from Posterior semicircular duct)
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Related to Posterior semicircular duct: anterior semicircular canal
Any of three tubular and looped structures of the inner ear, together functioning in maintenance of the sense of balance in the body.
(Anatomy) anatomy any of the three looped fluid-filled membranous tubes, at right angles to one another, that comprise the labyrinth of the ear: concerned with the sense of orientation and equilibrium
any of the three curved tubular canals in the inner ear, associated with the sense of equilibrium.
Any of the three looped tubes of the inner ear that together work to maintain the sense of balance of the body.
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|Noun||1.||semicircular canal - one of three tube loops filled with fluid and in planes nearly at right angles with one another; concerned with equilibrium|
sense organ, sensory receptor, receptor - an organ having nerve endings (in the skin or viscera or eye or ear or nose or mouth) that respond to stimulation
inner ear, internal ear, labyrinth - a complex system of interconnecting cavities; concerned with hearing and equilibrium