Nut (fruit)

Nut is a general term for the dry seed or fruit of some plants. While a wide variety of dried seeds and fruits are called nuts, only a certain number of them are considered by biologists to be true nuts. Nuts are an important source of nutrition for both humans and wildlife.
All nuts are seeds, but not all seeds are nuts. Nuts are both the seed and the fruit, and cannot be separated. Seeds come from fruit, and can be removed from the fruit, like almonds, cashews and pistachios, which were once inside fruit.