which expression is a measurement of density?
Best Answer: Medically a term used to measure bone mass. It is a measure of how much mass is contained in a given unit volume (density = mass/volume). It is usually expressed in kg/m^3. Put simply, if mass is a measure of how much âstuffâ there is in an object, density is a measure of how tightly that âstuffâ is packed together. One of the ways we can see density illustrated in everyday life is by looking at whether things float or sink in a liquid (water, for example).