fifth sound

fifth sound

[¦fifth ¦sau̇nd]
(cryogenics)
A temperature oscillation which propagates in helium II contained in a porous material such as a tightly packed powder, where the normal component is immobilized by its viscosity.
References in periodicals archive ?
I have taken Phase-IV of Korotkoff sound (K4) as diastolic blood pressure as the further and the fifth sounds (K5) occur simultaneously and in children the fifth sound many not occur at all.
This is their fifth Sound event and they guarantee lots of great music and a friendly atmosphere.
The fifth sound could be the same or a different sound.
Debut album Bleed The Fifth sounded even more colossal in the flesh and just served to prove how much poorer FF have become for Cazares' absence.
With hindsight, Firth of Fifth sounds exactly like Procul Harum, while the comedy number The Battle of Epping Forest, inspired by a newspaper story about an East End gangsters' turf war, poaches on Viv Stanshall's territory.
The portentous first notes of Beethoven's Fifth sounded, then the company name was splashed in blocky Superman-style lettering across the backdrop.