international temperature scale

noun

Definition of international temperature scale

: a practical temperature scale defining all temperatures above −183° C by specified formulas relating temperatures at one atmosphere pressure to the indications of instruments calibrated at six reproducible fixed points: the boiling point of oxygen (−182.97° C), the ice point (0° C), the steam point (100° C), the boiling point of sulfur (444.6° C), the freezing point of silver (960.8° C), the freezing point of gold (1063° C)

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!
Buying Guide

Our team at The Usage has selected the best smart thermostats of 2021.

Learn More About international temperature scale

Dictionary Entries Near international temperature scale

International System of Units

international temperature scale

international unit

See More Nearby Entries 

Statistics for international temperature scale

Cite this Entry

“International temperature scale.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/international%20temperature%20scale. Accessed 17 Oct. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

WORD OF THE DAY

Test Your Vocabulary

Dog Words Quiz

  • shiba puppy more or less demanding cuddles
  • Which of the following animals has a dog in its etymology?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

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!