occipital bone
US /ɑːkˈsɪpɪtl boʊn/
UK /ɑːkˈsɪpɪtl boʊn/

1.
枕骨
the bone that forms the back and base of the skull, and through which the spinal cord passes
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The neurosurgeon carefully examined the patient's occipital bone for any fractures.
神經外科醫生仔細檢查了患者的枕骨,看是否有骨折。
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The foramen magnum, a large opening, is located at the base of the occipital bone.
枕骨大孔,一個大開口,位於枕骨的底部。