lateral semicircular canal
/ˈlatəɹəl sˌɛmɪsˈɜːkjʊlə kənˈal/
n
English · lateral semicircular canal中文 · 外半规管Español · conducto semicircular lateralFrançais · canal semi-circulaire externe
意味：Horizontal canal; it monitors head movements to ensure that equilibrium is maintained.