Oval used in a sentence

Oval in a sentence as a noun

Do you think that Apple should be able to patent, say, the use of oval icons?

The note heads aren't the correct oval shape, but more of a blobish rectangle.

Wear-and-tear over some two years had removed the paint on a palm-sized oval area where my mouse hand sat.

Oval in a sentence as an adjective

This is because the ejecta of a meteor crater is related to the angle at which the meteor hits, the more oblique the angle, the more oval the crater.

How can voters influence outcomes when regardless of the principles and/or promises of who gets elected they end up getting the same policies?I always get this impression that the first day in office of a new president some guy in a black suit comes into the oval office, sits down across from the president, and then says "You know those campaign promises you made?