n, pl  hu*meri   :  the longest bone of the upper arm or forelimb extending from the shoulder to the elbow, articulating above by a rounded head with the glenoid fossa, having below a broad articular surface divided by a ridge into a medial pulley-shaped portion and a lateral rounded eminence that articulate with the ulna and radius respectively, and providing various processes and modified surfaces for the attachment of muscles .
 
 
 
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