You might want to read up on density and specific gravity.

There are limitations on the density and type of field used.

This effect depends on both the density and the temperature of the gas.

An emphasis on physical density and the human scale are characteristic of their work.

The mass stopping power then depends only very little on the density of the material.

Wave speed is also dependent on the density of the medium.

The time it takes to pickle depends on the density of the fish, from five minutes to 24 hours.

Models support statistics collection on pedestrian density in different areas.

This depends on the air pressure and the density of the pendulum, but not its shape.

And the planning boards will take up the cry: We cannot compromise on density.