English Explanatory Dictionary

machine-hour

English dictionary entry

Meanings

noun
  1. The amount of work that can be done by one machine in one hour; a billable hour for one machine. (Said of, for example, a piece of heavy equipment or a machine tool.)

Word forms

machine-hour machine-hours

Etymology

Compound of machine + hour, although, as with any such unit of measure (e.g., ton-miles, newton metres), the mathematical relationship of multiplication is simultaneously involved: X machines working during Y hours = X × Y = Z machine-hours.

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