- depletion - the act of decreasing something markedly
--1 is a kind of decrease, diminution, reduction, step-down
--1 has particulars: consumption, using up, expenditure; exhaustion; drainDerived form: verb deplete1 - depletion - the state of being depleted
--2 is a kind of temporary state
--2 has particulars: salt depletionDerived form: verb deplete1