What term describes the reduction in value of an asset due to wear and tear?

Depreciation is the term that accurately describes the reduction in value of an asset due to wear and tear over time. This concept is particularly relevant in accounting and finance, where it is used to allocate the cost of physical assets over their useful lives. As assets such as vehicles, machinery, or buildings are used, they generally lose value because of factors like usage, exposure to elements, and general decline in condition.

Understanding depreciation is essential for financial reporting and tax purposes, as it affects the asset's book value and can impact profit calculations over accounting periods. In contrast, appreciation refers to an increase in value, while valuation is the process of determining an asset's worth, and diminution can refer to a reduction in value but is not specifically tied to wear and tear like depreciation is.