Hypertext Webster Gateway: "oblonga"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Oblongum \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}.
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