These food grooves sort the particles by both density and size.

If separation by density is required, centrifugation is the most common method.

The movement of deep water in the ocean basins is by density driven forces and gravity.

Multiply volume by density and you have the mass of air.

"The plan was the grid - and to make money by increasing density."

It is just a matter of what you mean by "density."

I felt not so much nauseated as overpowered, oppressed by the warmth and density of the air.

The mantle is a part of a terrestrial planet or other rocky body large enough to have differentiation by density.

Using the Map: Use the buttons to display the population by density, age, income, or education.

The gravity, as suggested by the planet's size and density, felt perceptibly lighter than Earth's.