Roton

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The quantum of rotation in a superfluid
  2. 2
    an elementary excitation or quasiparticle in a superfluid

Etymology

From rotation + -on.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.