Definitions for "Clavicle"
The collar bone, which is joined at one end to the scapula, or shoulder blade, and at the other to the sternum, or breastbone. In man each clavicle is shaped like the letter ?, and is situated just above the first rib on either side of the neck. In birds the two clavicles are united ventrally, forming the merrythought, or wishbone.
The anterior (towards the front) S-shaped paired bone that forms the "collar bone."
The collar bone; this bone articulates with the sternum and the scapula.
Keywords:  collarbone
Keywords:  diminutive, roman, latin, old, key
diminutive of Latin clavis = key - old Roman key was S-shaped.