1.Definition: (astronomy) the circumferential edge of the apparent disc of the sun or the moon or a planet

Category: Places

2.Definition: any of the main branches arising from the trunk or a bough of a tree

Related Noun(s):tree branch

Category: Plants

3.Definition: any projection that is thought to resemble a human arm

Related Noun(s):arm, branch

Category: Objects

4.Definition: either of the two halves of a bow from handle to tip

"The upper limb of the bow"

Category: Objects

5.Definition: one of the jointed appendages of an animal used for locomotion or grasping: arm; leg; wing; flipper

Category: General

6.Definition: the graduated arc that is attached to an instrument for measuring angles

"The limb of the sextant"

Category: Objects