Celsius

adjective
Cel·​si·​us | \ ˈsel-sē-əs How to pronounce Celsius (audio) , -shəs \

Definition of Celsius

 (Entry 1 of 2)

: relating to, conforming to, or having the international thermometric scale on which the interval between the triple point of water and the boiling point of water is divided into 99.99 degrees with 0.01° representing the triple point and 100° the boiling point 10° Celsius also : centigrade abbreviation C

Celsius

biographical name
Cel·​sius | \ ˈsel-sē-əs How to pronounce Celsius (audio) , -shəs \

Definition of Celsius (Entry 2 of 2)

Anders 1701–1744 Swedish astronomer

Examples of Celsius in a Sentence

Adjective The temperature reached 23 degrees Celsius.

First Known Use of Celsius

Adjective

1816, in the meaning defined above

History and Etymology for Celsius

Adjective

Anders Celsius

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The first known use of Celsius was in 1816

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Dictionary Entries Near Celsius

celsitude

Celsius

celt

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Cite this Entry

“Celsius.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Celsius. Accessed 2 Dec. 2021.

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More Definitions for Celsius

Celsius

adjective

English Language Learners Definition of Celsius

: relating to or having a scale for measuring temperature on which the boiling point of water is at 100 degrees and the freezing point of water is at 0 degrees

Celsius

adjective
Cel·​si·​us | \ ˈsel-sē-əs How to pronounce Celsius (audio) \

Kids Definition of Celsius

: relating to or having a thermometer scale on which the interval between the freezing point and the boiling point of water is divided into 100 degrees with 0 representing the freezing point and 100 the boiling point

Celsius

adjective
Cel·​sius | \ ˈsel-sē-əs, -shəs How to pronounce Celsius (audio) \

Medical Definition of Celsius

: relating to or having a scale for measuring temperature on which the interval between the triple point and the boiling point of water is divided into 99.99 degrees with 0.01° being the triple point and 100.00° the boiling point abbreviation C — compare centigrade

More from Merriam-Webster on Celsius

Nglish: Translation of Celsius for Spanish Speakers

Britannica English: Translation of Celsius for Arabic Speakers

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