is·chi·al /ˈɪskɪəl/ 形容詞
坐骨的
Is·chi·al a. Anat. Of or pertaining to the ischium or hip; ischiac; ischiadic; ischiatic.
Ischial callosity Zool., one of the patches of thickened, hairless, and often bright-colored skin, on the buttocks of many apes, as the drill.
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