noun.
The femur or thigh-bone.
noun.
In anatomy: The hipbone, os coxæ or os innominatum.
noun.
The hip-joint.
noun.
In entomology, the first or basal joint (sometimes called the hip) of an insect's leg, by which it is articulated to the body.
noun.
The basal joint of the leg of a spider or a crustacean; a coxopodite (which see).