RAYLEIGH DISK

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

An acoustic radiometer consisting of a light disk suspended from a quartz thread; when exposed to a progressive sound wave its torque can measure velocity

Classified under:

Nouns denoting man-made objects

Hypernyms ("Rayleigh disk" is a kind of...):

radiometer (meter to detect and measure radiant energy (electromagnetic or acoustic))

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