Source : Webster's Revised Unabridged Dictionary (1913)

Gastrovascular \Gas`tro*vas"cu*lar\, a. [Gastro- + -vascular.]
   (Zo["o]l.)
   Having the structure, or performing the functions, both of
   digestive and circulatory organs; as, the gastrovascular
   cavity of c[oe]lenterates.