Definition: a large flat bone formed by the fusion of the ilium, ischium, and pubis (in the adult), constituting the anterolateral portion of the pelvic girdle; it articulates with its fellow anteriorly at the pubic symphysis, with the sacrum posteriorly at the sacroiliac joint, and with the femur laterally at the hip joint.
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Examples: glitazone, GI cocktail, etc.