While botanists use descriptive terms like ovoid (egg-shaped) or oblong (longer than wide) to describe fruit shapes, these are general terms used across various plant parts, not specifically for fruits.
The shape of a fruit is often less important than other botanical characteristics for classification. For example, a drupe is a fleshy fruit with a single seed enclosed in a hard pit (like a peach or cherry), regardless of its shape.
So, while we might describe a fruit as egg-shaped in common language, there isn't a single, specific botanical term for that shape.