Here you will find one or more explanations in English for the word Quadrivalve.
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Quadrivalve
Quadrivalve Quad"ri*valve, a. [Quadri- + valve: cf. F.
quadrivalve.] (Bot.)
Dehiscent into four similar parts; four-valved; as, a
quadrivalve pericarp.
Quadrivalve
Quadrivalve Quad"ri*valve, n. (Arch.)
A door, shutter, or the like, having four folds.
Meaning of Quadrivalve from wikipedia