Noun
heel bone (plural heel bones)
The large bone making up the heel of the human foot.
This arch stretches from the heel bone over the "keystone" ankle bone to the three medial metatarsals. Source: Internet
On 27 September 2007 bassist Mick Quinn sustained a broken heel bone and two spinal fractures in a sleepwalking accident whilst on holiday in France. Source: Internet
The remains included a heel bone with a nail driven through it from the side. Source: Internet