phonon

noun

pho·​non ˈfō-ˌnän How to pronounce phonon (audio)
: a quantum of vibrational energy (as in a crystal)

Examples of phonon in a Sentence

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Because the atoms are so tightly packed, vibrations within the crystal structure, called phonons, can dissipate heat extremely efficiently. New Atlas, 30 Nov. 2024 Physicists have discovered an entire zoo of quasiparticles in solid materials with names such as phonons, magnons, spinons, holons and plasmons. Douglas Natelson, Scientific American, 19 Mar. 2024 Instead of knocking excitons around, phonons in this molecule bind to them to create a new quasiparticle that flow freely through the semiconductor at twice the speed of electrons. IEEE Spectrum, 26 Dec. 2023 The secret to its speed lies the behavior of phonons, quasiparticles formed from vibrations in a solid. IEEE Spectrum, 26 Dec. 2023 See all Example Sentences for phonon 

Word History

Etymology

borrowed from Russian fonon, from Greek phōnḗ "sound made by something living, voice" + Russian -on -on entry 2 — more at -on entry 2 — more at phono-

First Known Use

1932, in the meaning defined above

Time Traveler
The first known use of phonon was in 1932

Dictionary Entries Near phonon

Cite this Entry

“Phonon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/phonon. Accessed 18 Dec. 2024.

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