The Collaborative International Dictionary of English v.0.48:

Keratode \Ker"a*tode\, n.
   See Keratose.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Keratose \Ker"a*tose`\, n. [Gr. ke`ras, -atos, horn.] (Physiol.
   Chem.)
   A tough, horny animal substance entering into the composition
   of the skeleton of sponges, and other invertebrates; --
   called also keratode.
   [1913 Webster]