Cataphract /(kăt"ȧ*frăkt)/

Cat·a·phract

Cataphract

n.
  1. Defensive armor used for the whole body and often for the horse, also, esp. the linked mail or scale armor of some eastern nations. (Mil. Antiq.)
  2. A horseman covered with a cataphract.
    Archers and slingers, cataphracts, and spears.
  3. The armor or plate covering some fishes. (Zool.)