limb

limb is a Noun

Definition:

[1] A part of a tree which extends from the trunk and separates into branches and twigs; a large branch.

[2] An arm or a leg of a human being; a leg, arm, or wing of an animal. A second Hector for his grim aspect, And large proportion of his strong-knit limbs. Shak.

[3] A thing or person regarded as a part or member of, or attachment to, something else. Shak. That little limb of the devil has cheated the gallows. Sir W. Scott.

[4] An elementary piece of the mechanism of a lock. Limb of the law, a lawyer or an officer of the law. [Colloq.] Landor.