Backfit
to update by providing new or improved equipment or features:
a five-year program of installing new power plants and backfitting existing ones.
Read Also:
- Backflap hinge
building trades. flap (def 20a).
- Back float
a floating position on one’s back with arms extended out to the sides and face upward.
- Backflow
a flow of a liquid opposite to the usual or desired direction.
- Backflow valve
backwater valve. a valve for preventing flowing liquid, as sewage, from reversing its direction.
- Back focus
the distance between the back surface of a lens and the focal plane when the lens is focused at infinity.