turboshaft

noun
tur·​bo·​shaft | \ ˈtər-bō-ˌshaft How to pronounce turboshaft (audio) \

Definition of turboshaft

: a gas turbine engine that is similar in operation to a turboprop engine but instead of being used to power a propeller is used through a transmission system for powering other devices (such as helicopter rotors and pumps)

First Known Use of turboshaft

1958, in the meaning defined above

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