1. He broke his collar bone.

2. A fussy neighbour broke his collar bone building barricades against the hippies. Sentencedict.com

3. To them, recovering from a broken collar bone in the opulent surroundings of Clarence House, would be luxury.

4. Mr Nott knew he needed to perform a forequarter amputation, requiring removal of the collar bone and shoulder blade.

5. Bruises on Maria were pronounced and regular proof of assaults, culminating in the broken collar bone of the previous October.

6. The Brachial plexus is located just behind the collar bone and divides into the three main nerves which descend down to the muscles of the arm and hand

7. "armorial bearings, coat of arms," late 13c., from Old French blason (12c.) "a shield, Blazon," also "collar bone;" common Romanic (compare Spanish blason, Italian blasone, Portuguese brasao, Provençal blezo, the first two said to be French loan-words) but of uncertain origin