specific impulse

noun

Definition of specific impulse

: the thrust produced per unit rate of consumption of the propellant that is usually expressed in pounds of thrust per pound of propellant used per second and that is a measure of the efficiency of a rocket engine

Examples of specific impulse in a Sentence

Recent Examples on the Web This would be a monumental achievement given that the world-record specific impulse—held by NASA—is 542 seconds, and most operating orbital rockets have specific impulses around 300 seconds. Daniel Oberhaus, Ars Technica, 27 June 2020 This would be a monumental achievement given that the world-record specific impulse—held by NASA—is 542 seconds, and most operating orbital rockets have specific impulses around 300 seconds. Daniel Oberhaus, Ars Technica, 27 June 2020 This would be a monumental achievement given that the world-record specific impulse—held by NASA—is 542 seconds, and most operating orbital rockets have specific impulses around 300 seconds. Daniel Oberhaus, Ars Technica, 27 June 2020 This would be a monumental achievement given that the world-record specific impulse—held by NASA—is 542 seconds, and most operating orbital rockets have specific impulses around 300 seconds. Daniel Oberhaus, Ars Technica, 27 June 2020 This would be a monumental achievement given that the world-record specific impulse—held by NASA—is 542 seconds, and most operating orbital rockets have specific impulses around 300 seconds. Daniel Oberhaus, Ars Technica, 27 June 2020 This would be a monumental achievement given that the world-record specific impulse—held by NASA—is 542 seconds, and most operating orbital rockets have specific impulses around 300 seconds. Daniel Oberhaus, Ars Technica, 27 June 2020 This would be a monumental achievement given that the world-record specific impulse—held by NASA—is 542 seconds, and most operating orbital rockets have specific impulses around 300 seconds. Daniel Oberhaus, Ars Technica, 27 June 2020 This would be a monumental achievement given that the world-record specific impulse—held by NASA—is 542 seconds, and most operating orbital rockets have specific impulses around 300 seconds. Daniel Oberhaus, Ars Technica, 27 June 2020

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

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First Known Use of specific impulse

1947, in the meaning defined above

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The first known use of specific impulse was in 1947

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Dictionary Entries Near specific impulse

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specific impulse

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Cite this Entry

“Specific impulse.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/specific%20impulse. Accessed 16 Oct. 2021.

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