The Collaborative International Dictionary of English v.0.48:

Quadrivalve \Quad"ri*valve\, a. [Quadri- + valve: cf. F.
   quadrivalve.] (Bot.)
   Dehiscent into four similar parts; four-valved; as, a
   quadrivalve pericarp.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Quadrivalve \Quad"ri*valve\, n. (Arch.)
   A door, shutter, or the like, having four folds.
   [1913 Webster]