name: A surname (common: 1 in 100000 families; popularity rank in the U.S.: #13538)
noun: Initialism of depleted uranium. [Uranium that contains a reduced (depleted) amount of the fissile isotope U-235 compared to natural uranium; it is used in applications where the nuclear properties of the uranium are not important, and the uranium is instead being used for its mechanical or chemical properties.]
noun: Initialism of Dobson unit. [A unit of measurement of the amount of a trace gas (typically ozone) in a vertical column through the Earth's atmosphere.]