Something that's shaped like an egg is an ovoid. If you want to impress your friends, call that sculpture in the park that looks like an oval with a slightly pointed to an ovoid.
Ovoid can also be used as an adjective that means "egg-shaped," as in the ovoid chocolates in a box of candy. Ovoid comes from the Latin word ovum, meaning "egg." The suffix -oid means "like." When you combine those, you can easily see how ovoid came to mean "egg-like." To correctly pronounce ovoid, accent the first syllable and give it the long o sound: "OH-void."