freestone
nounUK /ˈfriːstəʊn/
US /ˈfriːstoʊn/
A fruit with a pit that comes out easily when you eat it.
Peaches are freestones, so the pit pops right out.
OTHER MEANINGS
2. A type of stone, such as sandstone or limestone, that can be cut easily in any direction.
The builders used freestone for the walls because it was easy to shape.
3. A fruit whose flesh does not stick tightly to its pit.
She prefers freestone peaches for baking because they slice neatly.
4. In masonry, a stone that is worked or dressed rather than left rough.
The old church was made of fine freestone.