It depends if the last four letters of the word are "oval"
Here are some possible words:
octal
offal
oriel
oviform, egg-like
Egg
An eclipse is another name for an oval.
Ellipse.
elliptical
Rectangle or Oval I think
Ellipsoid. (An oval is a 2-d shape, NOT 3-d).
Another name for an oval-shaped projection map is called a Robinson Projection Map because it was created by an American cartographer named Arthur Robinson.
ellipse
The word lozenge describes an oblong object.
Another name for an oval-shaped projection map is called a Robinson Projection Map because it was created by an American cartographer named Arthur Robinson.
oblong; such as an oval or rectangle
There are several different "oval" shapes. A running track, which comprises two semicircles separated by two straight stretches is an oval. So is the cross section of an egg - a shape in which the cross-sectional width does not change uniformly. Another example is the ellipse. Because all these shapes are called ovals, there is no single name.
You may be referring to Mercator's projection, 1659 edition