noun A solid or hollow sphere, or roughly spherical mass.
a ball of spittle; a fecal ball
noun A quantity of string, thread, etc., wound into a spherical shape.
a ball of wool; a ball of twine
noun A food preparation formed into a spherical shape.
This dish is served with balls of potato.
noun Homologue or analogue of a disk in the Euclidean plane. In 3-dimensional Euclidean space, the volume bounded by a sphere. The set of points in a metric space of any number of dimensions lying within a given distance (the radius) of a given point. The set of points in a topological space lying within some open set containing a given point.
noun In 3-dimensional Euclidean space, the volume bounded by a sphere.
noun The set of points in a metric space of any number of dimensions lying within a given distance (the radius) of a given point.
noun The set of points in a topological space lying within some open set containing a given point.
noun A solid, spherical nonexplosive missile for a cannon, rifle, gun, etc. A jacketed non-expanding bullet, typically of military origin. Such bullets collectively.