Ovoid is an adjective that means egg-shaped. It is also a noun that refers to an egg-shaped body object..
Entering English in the 19th century, ovoid comes from the Latin word ovum (OH voom) which means ‘egg.’ Here’s an example of ovoid used as an adjective:
Sometimes extreme hunger can impair your thinking. The other day I was so hungry that when I spotted an ovoid container on the kitchen counter, I tried to crack it over a pan so I could scramble it.