| os ischii | 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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| ramus ossis ischii | The branch of the ischial bone, formerly called inferior branch of the ischium; the portion of the bone that passes forward from the ischial tuberosity to join the inferior ramus of the pubic bone, thus forming the ischiopubic ramus. Synonym: ramus ossis ischii. (05 Mar 2000) |
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| corpus ossis ischii | The entire ischium with the exception of the ramus. Synonym: corpus ossis ischii. (05 Mar 2000) |