Rayleigh disk

noun
Ray·​leigh disk | \ ˈrā-lē-\

Definition of Rayleigh disk

: a thin circular disk of mica or aluminum that when suspended in a beam of sound tends to set itself at right angles to the direction of propagation and by the angle assumed gives a measure of the sound intensity

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

History and Etymology for Rayleigh disk

after Baron John W. S. Rayleigh †1919 English physicist

Keep scrolling for more

Comments on Rayleigh disk

What made you want to look up Rayleigh disk? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

formidable, illustrious, or eminent

Get Word of the Day daily email!

Test Your Vocabulary

The Exceptions Quiz III

  • one green toy robot amidst many red toy robots
  • Which of these words does not mean "nonsense"?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!