in limbs of vertebrate animals: a long cylindrical bone that contains marrow

a human limb; technically the part of the superior limb between the shoulder and the elbow but commonly used to refer to the whole superior limb

the internal skeleton; bony and cartilaginous structure (especially of vertebrates)

bone extending from the shoulder to the elbow

the outer and slightly shorter of the two bones of the human forearm

the inner and longer of the two bones of the human forearm

a human limb; technically the part of the superior limb between the shoulder and the elbow but commonly used to refer to the whole superior limb

the internal skeleton; bony and cartilaginous structure (especially of vertebrates)