second sound

noun

A wave of fluctuating temperature or entropy propagated in the superfluid phase of liquid helium.

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Meanings

nounsecond sound (uncountable)
  1. uncountablenatural sciencesA wave of fluctuating temperature or entropy propagated in the superfluid phase of liquid helium.
Cite this entry
APA

second sound. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/second%20sound

MLA

“second sound.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/second%20sound. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “second sound,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/second%20sound.

Source: second sound on Wiktionary, CC BY-SA 4.0.