reciprocornous

from The Collaborative International Dictionary of English v.0.48

Reciprocornous \Re*cip`ro*cor"nous\
   (r[-e]*s[i^]p`r[-o]*k[^o]r"n[u^]s), a. [L. reciprocus
   returning, reciprocal + cornu horn.] (Zool.)
   Having horns turning backward and then forward, like those of
   a ram. [R.] --Ash.
   [1913 Webster]