consumption

n. using up, consuming; intake, process of taking food or other substances into the body via the mouth; tuberculosis (infectious disease)

Consumption may refer to:Consumption (economics)Consumption function, an economic formulaPower consumption, in electrical engineeringConsumption may also refer to:Tuberculosis (TB), an infectious diseaseThe ingestion of food and drink
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(n.)
The state or process of being consumed, wasted, or diminished; waste; diminution; loss; decay.
  

(n.)
The act or process of consuming by use, waste, etc.; decay; destruction.
  

(n.)
A progressive wasting away of the body; esp., that form of wasting, attendant upon pulmonary phthisis and associated with cough, spitting of blood, hectic fever, etc.; pulmonary phthisis; -- called also pulmonary consumption.
  

using a product or service until it has no remaining value.