depreciation

noun3

1. •
   The decline in value of assets.

   • The accountant calculated the annual depreciation of the machinery.
   • There was a sharp depreciation in the value of the currency.
2. •
   The measurement of the decline in value of assets. Not to be confused with impairment, which is the measurement of the unplanned, extraordinary decline in value of assets.
3. •
   The state of being depreciated; disparagement.