Ob·late a.
  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 Oblate spheroid Geom., a solid generated by the revolution of an ellipse about its minor axis; an oblatum. Contrasted with prolate spheroid.  See Ellipsoid of revolution, under Ellipsoid.