A vegetable is defined as any non-reproductive, edible part of a plant.

“if vegetables then are the edible parts of plants that are asexual, so not to do with the reproductive system. Um, you know, carrots are root, celery are the stems, you've got sort of it's sort of vegetative tissue because it doesn't have anything to do with plant reproduction.”

Botanically, fruits are defined as the ripened ovaries of plants.

“a fruit, scientifically, botanically, a fruit is a ripened ovary.”