Source : Webster's Revised Unabridged Dictionary (1913)

Valvular \Valv"u*lar\, a. [Cf. F. valvulaire.]
   1. Of or pertaining to a valve or valves; specifically
      (Med.), of or pertaining to the valves of the heart; as,
      valvular disease.

   2. Containing valves; serving as a valve; opening by valves;
      valvate; as, a valvular capsule.

Source : WordNet®

valvular
     adj : relating to or operating by means of valves