cup barometer

noun

Definition of cup barometer

: a barometer consisting of a graduated glass tube about 34 inches long filled with mercury and inverted in a cup containing mercury, the column of mercury in the tube descending until balanced by the pressure of the atmosphere, its rise and fall being a measure of change of atmospheric pressure

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!

Learn More about cup barometer

Statistics for cup barometer

Cite this Entry

“Cup barometer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cup%20barometer. Accessed 17 Jan. 2021.

Comments on cup barometer

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

WORD OF THE DAY

Test Your Vocabulary

Words of Snow and Ice Quiz

  • image1037863653
  • Which of the following refers to thin, bending ice, or to the act of running over such ice?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Typeshift

Anagram puzzles meet word search.

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!