Cupule

A cupule is a small structure shaped like a cup, including:


 * In archeology, rock cupules are circular man-made hollows on the surface of a large rock or a rock slab
 * On a smaller artifact they are called a cupstone.
 * In botany: the base of an acorn, see calybium and cupule.
 * In entomology, a sucker on the feet of some flies.