ETYM French clavicule, from Latin clavicula a little key, tendril, dim. of clavis key, akin to claudere to shut. Related to Close, Clef.
Collar-bone. The collar bone of many vertebrates. In humans it is vulnerable to fracture; falls involving a sudden force on the arm may result in very high stresses passing into the chest region by way of the clavicle and other bones.
Bone linking the scapula and sternum; SYN. collarbone.