emittance

noun

emit·​tance ē-ˈmi-tᵊn(t)s How to pronounce emittance (audio)
1
: the energy radiated by the surface of a body per second per unit area
2

Examples of emittance in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The new ring’s electron beam is even more compact than that of the ESRF-EBS; its emittance, a measure of the beam’s size and tendency to spread, is just one-third of the ESRF-EBS’s. Byadrian Cho, science.org, 27 June 2024 In some instances, this transition results in the emittance of a photon, or light particle. Kenna Hughes-Castleberry, Discover Magazine, 16 Aug. 2023 In the Composer's Inspiration sound chamber gallery, there is barely any light save a deep red emittance. Stephanie Elam, CNN, 28 Sep. 2021 Close to 1,500 Amazon purchasers have deemed these outdoor lights a worthy purchase for their al fresco space, raving over their long-lasting durability and warm, white emittance of light. Isabelle Kagan, USA TODAY, 10 Aug. 2020

Word History

First Known Use

1940, in the meaning defined at sense 1

Time Traveler
The first known use of emittance was in 1940

Dictionary Entries Near emittance

Cite this Entry

“Emittance.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/emittance. Accessed 21 Dec. 2024.

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