Used attributively in technical contexts (e.g., "depletion region") to modify a following noun.
Definitions
depletionnoun
The reduction in the number or quantity of something.
The depletion of natural resources is a major concern for environmentalists.
The act or process of using up or consuming resources or materials.
The depletion of the company's financial reserves led to budget cuts.
An accounting deduction representing the gradual exhaustion of mineral or natural resource deposits.
Oil companies can claim depletion on their tax returns to account for the decline of reserves.
depletionadjective
Relating to or denoting a zone, layer, region, etc., in which something (especially electrical charge carriers or resources) has been reduced or removed.
Engineers measured the electric field across the depletion region of the semiconductor.