uprate

verb
up·​rate | \ˈəp-ˌrāt \
uprated; uprating; uprates

Definition of uprate 

transitive verb

: upgrade specifically : to improve the power output of (a machine, such as an engine)

First Known Use of uprate

1965, in the meaning defined above

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Dictionary Entries near uprate

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upright

upright drill

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The first known use of uprate was in 1965

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