1) Animal anatomy 2) Hard 3) Hornlike 4) Horny 5) Made of horn 1) Hornlike 2) Horny 
Corneous is a biological and medical term meaning horny, in other words made out of a substance similar to that of horns and hooves in some mammals. The word is generally used to describe natural or pathological anatomical structures made out of a hard layer of protein. In mammals this protein would usually be keratin. The word corneous is also of...
horny
Synonym: horny. ... Origin: L. Corneus, fr. Cornu, horn ... (05 Mar 2000) ... 
(kor´ne-әs) horny. keratinous.
horny
Cor'ne·ous adjective [ Latin corneus , from cornu horn.] Of a texture resembling horn; horny; hard. Sir T. Browne. 
Horny; hard and very dense in texture.
[adj] - made of horn (or of a substance resembling horn)
hornlike adjective made of horn (or of a substance resembling horn)
consisting of a horny substance; horny.