semicircular canal

noun Anatomy.

1. any of the three curved tubular canals in the labyrinth of the ear, associated with the sense of equilibrium.

noun

1. 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

n.

1. Any of three bony tubes in the labyrinth of the ear within which the semicircular ducts are located.

1. Any of the three looped tubes of the inner ear that together with the vestibules makes up the organs that maintain equilibrium in vertebrates.