It refers specifically to bones that shape the face and support teeth, not muscles or flesh. Her jawbone is well-defined, giving her a distinct profile.
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Injury Description
Often used to describe fractures or injuries, especially in medical or accident-related contexts. The X-ray showed a fracture in his lower jawbone.
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Anatomical Reference
Use 'jawbone' when specifically talking about the bone, not to refer to the outer appearance or jaw movement. The dentist said my jawbone needed to be realigned.