noun🔗Share尾骨，骶骨。 The final fused vertebrae at the base of the spine; the coccyx."After falling on the ice, she had a sharp pain in her tailbone. "摔倒在冰上后，她感到尾骨一阵剧痛。anatomybodyphysiologypartmedicineorganbiologyChat with AIVocabulary GamePractice Reading
