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Definition of Hip bone
1. Noun. (context: skeleton) One of the two bones that form the sides of the pelvis. ¹
¹ Source: wiktionary.com
Medical Definition of Hip bone
1. A large flat bone formed by the fusion of the ilium, ischium, and pubis (in the adult), constituting the lateral half of the pelvis; it articulates with its fellow anteriorly, with the sacrum posteriorly, and with the femur laterally. Synonym: os coxae, coxa, coxal bone, innominate bone, os innominatum. (05 Mar 2000)