impeller

noun

im·​pel·​ler im-ˈpe-lər How to pronounce impeller (audio)
variants or less commonly impellor
1
: one that impels
2
a
: a rotor located in a conduit to impart motion to a fluid
b
: a blade of a rotor

Example Sentences

Recent Examples on the Web Two-stage snow blowers: Also known as dual-stage, these blowers start with a similar augur design but add in an impeller, a fan-like mechanism that helps discharge snow out the chute. Dan Diclerico, Good Housekeeping, 25 Oct. 2022 An impeller within the low-pressure fuel pump may crack and deform, potentially causing the fuel pump to fail. Detroit Free Press, 21 Aug. 2021 An impeller within the low-pressure fuel pump may crack and deform, potentially causing the fuel pump to fail. Detroit Free Press, 21 Aug. 2021 An impeller within the low-pressure fuel pump may crack and deform, potentially causing the fuel pump to fail. Detroit Free Press, 21 Aug. 2021 The larger raw corncobs took longer than with other disposals, sometimes hanging up on the impeller without grinding. Bradley Ford, Popular Mechanics, 26 Aug. 2021 An impeller within the low-pressure fuel pump may crack and deform, potentially causing the fuel pump to fail. Detroit Free Press, 21 Aug. 2021 An impeller within the low-pressure fuel pump may crack and deform, potentially causing the fuel pump to fail. Detroit Free Press, 21 Aug. 2021 An impeller within the low-pressure fuel pump may crack and deform, potentially causing the fuel pump to fail. Detroit Free Press, 21 Aug. 2021 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'impeller.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

First Known Use

1685, in the meaning defined at sense 1

Time Traveler
The first known use of impeller was in 1685

Dictionary Entries Near impeller

Cite this Entry

“Impeller.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/impeller. Accessed 7 Dec. 2022.

More from Merriam-Webster on impeller

Last Updated: - Updated example sentences
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