| ischium | 1. <anatomy> The ventral and posterior of the three principal bones composing either half of the pelvis; seat bone; the huckle bone. 2. <zoology> One of the pleurae of insects. Origin: L, Gr. Source: Websters Dictionary (01 Mar 1998) |
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| body of ischium | The entire ischium with the exception of the ramus. Synonym: corpus ossis ischii. (05 Mar 2000) |
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| tuber of ischium | The rough bony projection at the junction of the lower end of the body of the ischium and its ramus; this is a weight-bearing point in the sitting position; provides attachment for the sacrotuberous ligament and is the site of origin of the hamstring muscles. Synonym: tuber ischiadicum, tuber of ischium. (05 Mar 2000) |