Oblate \Ob*late"\, a. [L. oblatus, used as p. p. of offerre to bring forward, offer, dedicate; ob (see Ob-) + latus borne, for tlatus. See Tolerate.]

1. (Geom.) Flattened or depressed at the poles; as, the earth is an oblate spheroid.

2. Offered up; devoted; consecrated; dedicated; -- used chiefly or only in the titles of Roman Catholic orders. See Oblate, n.

Oblate ellipsoid or spheroid (Geom.), a solid generated by the revolution of an ellipse about its minor axis; an oblatum. See Ellipsoid of revolution, under Ellipsoid.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Spheroid \Sphe"roid\, n. [L. spheroides ball-like, spherical, Gr. ???; ???? sphere + ??? form: cf. F. sph['e]ro["i]de.]

A body or figure approaching to a sphere, but not perfectly spherical; esp., a solid generated by the revolution of an ellipse about one of its axes.

Oblate spheroid, Prolate spheroid. See Oblate, Prolate, and Ellipsoid.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Prolate \Pro"late\, a. [L. prolatus, used as p. p. of proferre to bring forth, to extend; pro + latus, p. p. See Pro-, and Tolerate. ] Stretched out; extended; especially, elongated in the direction of a line joining the poles; as, a prolate spheroid; -- opposed to oblate.

Prolate cycloid. See the Note under Cycloid.

Prolate ellipsoid or spheroid (Geom.), a figure generated by the revolution of an ellipse about its major axis. See Ellipsoid of revolution, under Ellipsoid.

Source: Webster's Revised Unabridged Dictionary (1913)