1. The region of a
forelimb between shoulder and elbow (containing the
humerus bone) of a
biped; it does not include the
forearm (the region between elbow and wrist). This is known
colloquially as the upper arm.
2. The region between the shoulder and wrist of a
forelimb if not used for weight-bearing or
All four limbs of cats and dogs are used for
weight-bearing and locomotion, and so they are usually
termed legs, not arms.