shoulder joint shoul·der·joint uncommon noun 1. a ball-and-socket joint between the head of the humerus and a cavity of the scapula Synonymsshouldershoulder jointarticulatio humeri Related words Word family shoulder Broader terms ball-and-socket joint Parts torso Part of scapulacircumflex humeral arterycircumflex scapular arteryrotator cuff WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
