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
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.
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 May. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share