"Prolatum" is a word in ENGLISH

A solid formed by the revolution of a conic section about its axis; as, a parabolic conoid, elliptic conoid, etc.; …

A class of Coelenterata, commonly ellipsoidal in shape, swimming by means of eight longitudinal rows of paddles. The separate paddles …

Alt. of Ellipsoidal

A solid, all plane sections of which are ellipses or circles. See Conoid, n., 2 (a).

Pertaining to, or shaped like, an ellipsoid; as, ellipsoid or ellipsoidal form.

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

A surface whose equation in three variables is of the second degree. Spheres, spheroids, ellipsoids, paraboloids, hyperboloids, also cones and …