emittance
noun
emit·tance
ē-ˈmi-tᵊn(t)s 
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
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
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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
Cite this Entry
“Emittance.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/emittance. Accessed 4 Jul. 2025.
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