eyeball(n = noun.body) orb - the ball-shaped capsule containing the vertebrate eye;
is a kind of capsule
is a part of eye, oculus, optic
Derived form verb eyeball₁

   eyeball(v = verb.perception) eye - look at;
is one way to look
Derived form noun eyeball₁
Sample sentences: Sam cannot eyeball Sue

   The ball or globe of the eye. [1913 Webster]

eyeball, n. & v.
--n. the ball of the eye within the lids and socket.
--v. US sl.
1 tr. look or stare at.
2 intr. look or stare.

Idiom:
eyeball to eyeball colloq. confronting closely. to (or up to) the eyeballs colloq. completely (permeated, soaked, etc.).

eyeball to eyeball