- IPA[äkˈsipədl ˌbōn]
- the bone that forms the back and base of the skull, and through which the spinal cord passes.
noun: occipital bone, plural noun: occipital bones
- IPA[ɒkˈsɪpɪt(ə)l bəʊn]
- the bone which forms the back and base of the skull and encircles the spinal cord.