limb limb /ˈlɪm/

noun

1. () One of the jointed appendages of an animal used for locomotion or grasping: arm; leg; wing; flipper  ( limb )
   one of the jointed appendages of an animal used for locomotion or grasping: arm; leg; wing; flipper
     He injured his limb during a soccer game and had to wear a cast.
   He injured his limb during a soccer game and had to wear a cast.
   
2. Any projection that is thought to resemble a human arm  ( branch , limb , arm )
   any projection that is thought to resemble a human arm
    The arm of the record player
   the arm of the record player
    An arm of the sea
   an arm of the sea
    A branch of the sewer
   a branch of the sewer
   
3. The graduated arc that is attached to an instrument for measuring angles  ( limb )
   the graduated arc that is attached to an instrument for measuring angles
    The limb of the sextant
   the limb of the sextant
   
4. Either of the two halves of a bow from handle to tip  ( limb )
   either of the two halves of a bow from handle to tip
    The upper limb of the bow
   the upper limb of the bow
   
5. (astronomy) the circumferential edge of the apparent disc of the sun or the moon or a planet  ( limb )
   (astronomy) the circumferential edge of the apparent disc of the sun or the moon or a planet
   
6. Any of the main branches arising from the trunk or a bough of a tree  ( limb , tree branch )
   any of the main branches arising from the trunk or a bough of a tree
     The squirrel scampered along the tree branch, searching for acorns.
   The squirrel scampered along the tree branch, searching for acorns.