atrio·ven·tric·u·lar /ˌetriovɛnˈtrɪkjəlɚ/
  atrio·ven·tric·u·lar /ˌetrɪ(ˌ)oˌvɛnˈtrɪkjəlɚ/ 形容詞
  atrioventricular
       adj : relating to or affecting the atria and ventricles of the
             heart; "atrioventricular disease" [syn: auriculoventricular]