(idiomatic) The ulnar nerve in the elbow, which, when hit, causes a tingly sensation. / (figuratively) One's sense of humor.

The essential elements of something, described without going into detail.

The calcareous internal shell of a cuttlefish, used as a dietary supplement for cage birds.

(idiomatic) Something that continues to be disputed; something on which no agreement can be reached

(idiomatic) A skinny, malnourished person or animal.

The cheekbone.

The cheekbone.

(anatomy) Either of two bones that together form the sides and top of the skull.

The bone of the skull between the eyes and at the roof of the nose.

The large bone making up the heel of the human foot.