reversible-pitch propeller

noun

Definition of reversible-pitch propeller

: a propeller whose blade pitch may be adjusted to produce thrust in a direction opposite to that normally obtained

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“Reversible-pitch propeller.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/reversible-pitch%20propeller. Accessed 19 Oct. 2020.

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