useful life
noun
The (expected) period of time in which a device, vehicle, structure, etc., is productive or in use.
Origin
Mid 19th century.
- microcatchment
- microcell
- microcellular
- microcentrifuge
- microcephalia
- microcephalic
- microcephalous
- microcephalus
- microcephaly
- microchannel
- microcheck
- microchemical
- microchemically
- microchemist
- microchemistry
- microchip
- Microchiroptera
- microchiropteran
- microcinema
- microcinematographic
- microcinematography
- microcircuit
- microcircuitry
- microcirculation
- microcirculatory