unicornio

2. A two-horned animal of some unknown kind, so called in the Authorized Version of the Scriptures.
[1913 Webster]

Canst thou bind the unicorn with his band in the furrow? --Job xxxix.
10.
[1913 Webster]

Note: The unicorn mentioned in the Scripture was probably the urus. See the Note under {Reem}.
[1913 Webster]

3. (Zo"ol.) (a) Any large beetle having a hornlike prominence on the
head or prothorax.
(b) The larva of a unicorn moth.
[1913 Webster]

4. (Zo"ol.) The kamichi; -- called also unicorn bird. [1913 Webster]

5. (Mil.) A howitzer. Obs. [1913 Webster]

Fossil unicorn, or Fossil unicorn s horn (Med.), a substance formerly of great repute in medicine; -- named
from having been supposed to be the bone or the horn of
the unicorn.

Unicorn fish, Unicorn whale (Zo"ol.), the narwhal.

Unicorn moth (Zo"ol.), a notodontian moth ({Coelodasys unicornis}) whose caterpillar has a prominent horn on its
back; -- called also {unicorn prominent}.

Unicorn root (Bot.), a name of two North American plants, the yellow-flowered colicroot ({Aletris farinosa}) and the
blazing star ({Cham[ae]lirium luteum}). Both are used in
medicine.

Unicorn shell (Zo"ol.), any one of several species of marine gastropods having a prominent spine on the lip of
the shell. Most of them belong to the genera {Monoceros}
and {Leucozonia}.
[1913 Webster]

Source: The Collaborative International Dictionary of English