Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

white noise

noun

Simple Definition of white noise

  • : a constant noise (such as that the noise from a television or radio that is turned on but is not receiving a clear signal) that is a mixture of many different sound waves

Full Definition of white noise

  1. 1 a :  a heterogeneous mixture of sound waves extending over a wide frequency range — compare pink noise b :  a constant background noise; especially :  one that drowns out other sounds

  2. 2 :  meaningless or distracting commotion, hubbub, or chatter <the white noise of policy and politics in America — Joseph Nocera>

1943

First Known Use of white noise

1943

Rhymes with white noise


Medical Dictionary

white noise

noun

Medical Definition of white noise

  1. :  a heterogeneous mixture of sound waves extending over a wide frequency range that has been used to mask out unwanted noise interfering with sleep—called also white sound




Learn More about white noise


Seen and Heard

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

WORD OF THE DAY

February 9, 2016

marked by high spirits and laughter

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1037863653

Which of the following refers to thin, bending ice, or to the act of running over such ice?

kittly-benders pince-nez spindrift duvet
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

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

TAKE THE QUIZ