Medical Dictionary
arm
noun \ˈärm\
Medical Definition of ARM
1
a : a human upper limb b : the part of the human upper limb between the shoulder and the wrist; also : brachium
2
a : the forelimb of a vertebrate other than a human being b : a limb of an invertebrate animal c : any of the usually two parts of a chromosome lateral to the centromere
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