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(-loid), n.[Parabola + -oid: cf. F. parabolode.] (Geom.) The solid generated by the rotation of a parabola about its axis; any surface of the second order whose sections by planes parallel to a given line are parabolas. The term paraboloid has sometimes been applied also to the parabolas of the higher orders. Hutton. スポンサード リンク
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