The mass defects of the samples were measured and analyzed.

The victims of the tragedy were laid to rest in mass burials.

They attended the midnight masses during the Christmas season.

There are many mass numbers in the periodic table.

The molecular masses of the compounds were determined using mass spectrometry.

The morrow-masses were held in the cathedral.

The reduced masses of the particles were calculated using the formula.

Scientists conducted experiments with subcritical masses.

Scientists have discovered that when supercritical masses are reached, a nuclear chain reaction can occur.

The working masses play a crucial role in the economy.