theorem

noun

the·​o·​rem ˈthē-ə-rəm How to pronounce theorem (audio)
ˈthir-əm
1
: a formula, proposition, or statement in mathematics or logic deduced or to be deduced from other formulas or propositions
2
: an idea accepted or proposed as a demonstrable truth often as a part of a general theory : proposition
the theorem that the best defense is offense
3
4
: a painting produced especially on velvet by the use of stencils for each color
theorematic adjective

Examples of theorem in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
In 1918, Noether published the results of her investigations in two landmark theorems. Shalma Wegsman, Quanta Magazine, 7 Feb. 2025 Mathematicians have since built on his theorem, proving the same statement for primes that meet additional criteria. Joseph Howlett, WIRED, 19 Jan. 2025 As modernity opened new scientific fronts, approaches to the theorem also evolved. Alexander Nazaryan, New York Times, 3 Jan. 2025 Teorema, which in English means theorem, also evokes the Pythagorean theorem of Euclidean geometry — angular shapes are very much at the heart of this new collection. Sofia Celeste, WWD, 3 Sep. 2019 See all Example Sentences for theorem 

Word History

Etymology

Late Latin theorema, from Greek theōrēma, from theōrein to look at, from theōros spectator, from thea act of seeing — more at theater entry 1

First Known Use

1551, in the meaning defined at sense 1

Time Traveler
The first known use of theorem was in 1551

Dictionary Entries Near theorem

Cite this Entry

“Theorem.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/theorem. Accessed 14 Feb. 2025.

Kids Definition

theorem

noun
the·​o·​rem ˈthē-ə-rəm How to pronounce theorem (audio)
ˈthi(-ə)r-əm
1
: a formula, proposition, or statement in mathematics or logic that has been or is to be proved from other formulas or propositions
2
: an idea accepted or proposed as a demonstrable truth

More from Merriam-Webster on theorem

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