skull /skʌl/ I. n. ［c］ 颅骨，脑壳，头盖骨；头脑：an old man with bald skull秃顶老人；have a thick skull 笨头笨脑The arrow pierced his skull.箭刺入他的头骨。He died in the car collision with his skull fractured.他在那次撞车事件中因头骨碎裂而死去。