A fruit is a mature ovary of a flowering plant that typically contains seeds.

This definition focuses on the biological process of fruit development:

* Ovary: The part of a flower that contains the ovules, which develop into seeds.

* Maturation: The process of the ovary ripening and developing into a fruit.

* Seeds: The structures that contain the plant's embryo and are usually dispersed by the fruit.

Important points to note:

* Botanically, fruits are not defined by sweetness or taste. Many fruits are savory, like tomatoes, cucumbers, and peppers.

* "Fruit" in everyday language can be different from the scientific definition. For example, a strawberry is botanically a "false fruit" because it develops from the swollen receptacle of the flower, not just the ovary.

* Fruits can be classified in various ways: based on their structure, development, and the number of seeds they contain.

This definition helps understand the essential function of fruits in plant reproduction: to protect the seeds and aid in their dispersal.