† ˈcataphragmObs.rare. [ad.Gr. type *κατάϕραγµα, f. as cataphract] Defensive covering or coating. 1656J. Serjeant tr.White's Peripatet. Inst. 380 The left side..necessarily participates more of the Vegetative Vertue then any other member of the exteriour Cataphragm.