(definition) by Webster 1913 Wed Dec 22 1999 at 1:31:39

Ob*lon"gum (?), n.; pl. Oblonga (#). [NL. See Oblong.] Geom.

A prolate spheroid; a figure described by the revolution of an ellipse about its greater axis. Cf. Oblatum, and see Ellipsoid of revolution, under Ellipsoid.

 

© Webster 1913.

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