depletion
noun
[ dɪˈpliːʃn ]
• reduction in the number or quantity of something.
• "the depletion of the ozone layer"
Similar:
exhaustion,
using up,
use,
consumption,
expending,
expenditure,
draining,
emptying,
sapping,
milking,
reduction,
decrease,
dwindling,
diminution,
lessening,
lowering,
attenuation,
impoverishment,
bleeding,
