The definition of inbound is something that moves inward. An example of inbound is the freeway that goes toward the city center. 1  traveling or going inward.  Basketball inbounds.
Mass is a measurement of how much matter is in an object. Mass is a combination of the total number of atoms, the density of the atoms, and the type of atoms in an object. How to Measure Mass.
mass noun. 1Light or heat as emitted or reflected by something. âthe radiance of the sunset dwindled and diedâ. âThe emphasis shifts from bright surfaces and brilliant sparkle to the soft radiance of inner light, exploring the complexities, activities and possibilities of a thousand points of light.â.