| pygal | <anatomy> Situated in the region of the rump, or posterior end of the backbone; applied especially to the posterior median plates in the carapace of chelonians. Origin: Gr. The rump. Source: Websters Dictionary (01 Mar 1998) |
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| pygalgia | Rarely used term meaning pain in the buttocks. Origin: pyg-+ G. Algos, pain (05 Mar 2000) |