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.

A scanning laser microscope that uses a short excitation pulse followed by a depletion pulse tuned to an emission line of a fluorescent dye

Microscopy using a stimulated emission depletion microscope

plural of stimulated emission depletion microscope