Submitted by György Chityil ... on Sat, 01/20/2018 - 00:57 Hierarchy: NounDescription: {{physics}} A wave of fluctuating temperature or entropy propagated in the superfluid phase of liquid heliumNgram: second soundNgram Text: second soundSource: WiktionaryIssue: 0Wiktionary tag: physicsNgram Count: 2
