corneous

/ˈkɔrniəs/
adjective
  1. Made of or resembling horn; hard and tough like horn.
    • The turtle's shell has a corneous outer layer that protects it.
    • Some insects have corneous wings that are not used for flying.
    • The corneous material of a rhino's horn is similar to human fingernails.
Antonyms
What does "corneous" mean? | whatsthatwordmean | whatsthatwordmean