The seed of a tree in the genus Prunus of the rose family, native to western Asia and eaten like a nut once shelled.
Wild peaches were only 25mm long with a flesh-to-pit ratio of just 3:2—essentially an almond with a thin layer of flesh. Peaches and almonds are very closely related species, and if you look closely at a peach pit, you can see it resembles an almond.