Keratose /(?)/

Ker·a·tose

Keratose

n.
  1. A tough, horny animal substance entering into the composition of the skeleton of sponges, and other invertebrates; -- called also keratode. (Physiol. Chem.)

Keratose

a.
  1. Containing hornlike fibers or fibers of keratose; belonging to the Keratosa. (Zool.)