pistonphone

noun
pis·​ton·​phone | \ -ˌfōn\

Definition of pistonphone

: an instrument for measuring acoustic intensity by the displacement of a piston resulting from the sound pressure upon it

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 pistonphone

piston + -phone

Keep scrolling for more

Comments on pistonphone

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

WORD OF THE DAY

behavior toward others

Get Word of the Day daily email!

Test Your Vocabulary

Words for Summer: A Quiz

  • a closeup of a sunflower
  • Which of the following words means “of or relating to summer”?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Add Diction

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!