| 
 | 
Medical Definition of Facies lunata acetabuli
1. The curved articular surface that surrounds the acetabular fossa and articulates with the head of the femur. Synonym: facies lunata acetabuli. (05 Mar 2000)
| 
 | 
1. The curved articular surface that surrounds the acetabular fossa and articulates with the head of the femur. Synonym: facies lunata acetabuli. (05 Mar 2000)