Vegatable is a culinary term, not a scientific term. All vegetables that we human eat that are not leafy greens or tubers are in fact fruits, scientifically speaking. Cucumbers are a fruit, until you bring them into the kitchen, at which point the vegatable-fruit superposition collapses and it becomes a vegatable, full stop.

But it doesn't belong, if it's going in the tum tum, gotta be yum yum.