atrioventricular [ey-tree-oh-ven-trik-yuh-ler] Word Origin adjective Anatomy.

  1. of or relating to the atria and ventricles of the heart. Abbreviation: AV, A-V

Origin of atrioventricular 1855–60; New Latin atrio- (combining form of atrium heart chamber; see atrium, -o-) + ventricular British Dictionary definitions for atrioventricular atrioventricular adjective anatomy

  1. of, relating to, or affecting both the atria and the ventricles of the heartatrioventricular disease

Word Origin for atrioventricular C19: from atrio-, from New Latin atrium heart chamber (see atrium) + ventricular atrioventricular in Medicine atrioventricular [ā′trē-ō-vĕn-trĭk′yə-lər] adj.

  1. Of or relating to the atria and the ventricles of the heart.

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