deplete

verb depletes · depleting · depleted

1. transitive To reduce the amount of; to remove (a substance from something) The winter storm quickly depleted the salt supply of the county.
2. transitive To expend or separate a reactant.
3. transitive To reduce the amount of a substance with a medication or medical procedure or due to a illness. Certain medications can deplete vitamin D.
4. transitive To use up, exhaust, or consume (power or resources). Its reserves have been invaded and depleted.
5. rare, transitive To decrease the amount of an isotope (in a mixture of isotopes).

   Opposite: enrich

6. transitive To empty or purge (something of a substance). The conservation project depleted the lake of algae.
7. transitive To clear a compound or solution (of a reactant). Cycling also produces layered scales, as repeated spallation further depletes the compound of Al and allows Cr₂O₃ formation.
8. transitive To clear a mixture of isotopes (of an isotope or isotopes). The by-product of this process, which depletes uranium of its most radioactive isotopes, is called depleted uranium (DU).

   Opposite: enrich

9. intransitive To diminish in quantity or strength; to be consumed. I noticed a couple of days ago how quickly the battery depletes.
10. intransitive To be expended or separated (of a substance). As can be seen in Fig. 1.49, FS 21 rapidly depletes of Li⁺ near the surface during the exposure to a NaNO₃ melt and simultaneously enriches in Na⁺.
11. intransitive To undergo loss of an isotope. Since uranium depletes in this process, it is called fissile fuel, nuclear fuel or simply fuel.

Opposite: replenish