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TWL
Phonon
Origin
From
Ancient Greek
φωνή
(
phÅnḗ
, "sound") +
-on
. Modelled after
photon
.
Noun
phonon
(
plural
phonons
)
(
physics
) The
quantum
of
acoustic
or vibrational energy (sound), considered a
discrete
particle rather than a wave.
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