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单词 pyramoid
释义 pyramoid Geom. rare—0.|ˈpɪrəmɔɪd|
[ad. Gr. πῡραµοειδής pyramid-shaped, f. πῡραµίς pyramid: see -oid.]
= pyramidoid (Webster 1864). So pyraˈmoidal a. = pyramidoidal b.
1883Heddle in Encycl. Brit. XVI. 354/2 Producing..in the hexagonal system ‘pyramoidal’ and ‘gyroidal’ forms.
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