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

| semicircular canal n. Any of three tubular and looped structures of the inner ear, together functioning in maintenance of the sense of balance in the body. |
semicircular canal sem·i·cir·cu·lar canal (sěm'ĭ-sûr'kyə-lər)
n.
Any of three bony tubes in the labyrinth of the ear within which the semicircular ducts are located.
| semicircular canal (sěm'ĭ-sûr'kyə-lər) Pronunciation Key
Any of the three looped tubes of the inner ear that together with the vestibules makes up the organs that maintain equilibrium in vertebrates. |