| 单词 | acetabulum | 
| 释义 | acetabulum [´a·sǝ`tab·yǝ·lǝm]  ANATOMY A cup-shaped socket on the hipbone that receives the head of the femur.  INVERTEBRATE ZOOLOGY 1. A cavity on an insect body into which a leg inserts for articulation.  2. The sucker of certain invertebrates such as trematodes and tapeworms.  | 
	
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