Definition of prepubis
1 : the part of the pubis of a reptile or bird that lies in front of the acetabulum, is best developed in ornithischian dinosaurs in which it is regarded as the homologue of the true pubis of other reptiles and higher groups, and in birds is derived largely from the ilium
2a : epipubis b : an epipubic bone
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Origin and Etymology of prepubis
New Latin, from pre- + pubis
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