radial nerve

radial nerve

noun

Definition of RADIAL NERVE

: a large nerve that arises from the posterior cord of the brachial plexus and passes spirally down the humerus to the front of the lateral epicondyle where it divides into a superficial branch distributed to the skin of the back of the hand and arm and a deep branch to the underlying extensor muscles—called also musculospiral nerve, nervus radialis