Final answer:
A clingstone is a type of fruit where the flesh tightly adheres to the pit, commonly associated with peaches and other stone fruits like plums and cherries.
Step-by-step explanation:
A clingstone is a type of fruit where the flesh clings tightly to the pit or stone. The term "clingstone" is commonly associated with peaches, but it can apply to any stone fruit with this characteristic.
Stone fruits, also known as drupes, are a group that includes peaches, plums, cherries, apricots, and nectarines. In contrast to clingstones, 'freestones' are stone fruits where the flesh easily separates from the pit. Clingstone fruits are often favored for eating fresh or for uses where the fruit's shape is less important, such as in jams or other cooked recipes.