decimal

adjective
dec·​i·​mal | \ ˈde-sə-məl How to pronounce decimal (audio) , ˈdes-məl \

Definition of decimal

 (Entry 1 of 2)

: numbered or proceeding by tens:
a : based on the number 10 especially : expressed in or utilizing a decimal system especially with a decimal point
b : subdivided into 10th or 100th units decimal coinage

decimal

noun

Definition of decimal (Entry 2 of 2)

: any real number expressed in base 10 especially : decimal fraction

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Other Words from decimal

Adjective

decimally \ ˈde-​sə-​mə-​lē How to pronounce decimally (audio) , ˈdes-​mə-​ \ adverb

Examples of decimal in a Sentence

Adjective In the number 8.901, the 9 is in the first decimal place. Noun The number 67.398 is a decimal. It is equal to the whole number 67 plus the decimal.398. Seven-tenths written as a decimal is .7. The decimal.2 is equal to the fraction 2/10.
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Recent Examples on the Web: Adjective Instead, their decimal representations never terminate and do not repeat. Quanta Magazine, "How Rational Math Catches Slippery Irrational Numbers," 10 Mar. 2020 The new records include the factoring of RSA-240, an RSA key that has 240 decimal digits and a size of 795 bits. Dan Goodin, Ars Technica, "New crypto-cracking record reached, with less help than usual from Moore’s Law," 3 Dec. 2019 The Gini coefficient measures inequality by assigning a decimal number that can range from 0, which represents perfect equality, to 1, meaning perfect inequality. Joshua Jansa, The Conversation, "Inequality is higher in some states like New York and Louisiana because of corporate welfare," 7 Nov. 2019 American sports are so relentlessly driven by statistics, analytics, predictions, and down-to-the-decimal quality rankings that when a genuine aberration appears on the field, there seems to be nothing else to do but descend into mania. Charles C. W. Cooke, National Review, "Gardner Minshew Will Convince You," 24 Oct. 2019 That’s 100/213 fractional odds and 1.47 decimal odds. Ryan R. Bonini, USA TODAY Sportsbook Wire, "2019 World Series: Updated odds, lines and game schedule," 20 Oct. 2019 So, in June of 1799, two platinum standards—a meter rod and a kilogram cylinder—were forged, marking the creation of the decimal metric system. Robert Rathe, National Geographic, "The kilogram is forever changed. Here's why that matters.," 20 May 2019 The decimal meter hit 115 at Ford Field, and after a field goal, the game was tied. Jeff Seidel, Detroit Free Press, "Ripped off? Jubilation becomes disgust in Detroit Lions' loss to Falcons," 24 Sep. 2017 And the numbers between the dollar sign and the decimal point undoubtedly will continue to grow. Mark Maske, chicagotribune.com, "Matthew Stafford just set the NFL's contract record. It won't last long.," 29 Aug. 2017 Recent Examples on the Web: Noun There’s nothing tricky at this step—just round up if the decimal is 0.5 or higher, and round down otherwise. Dave Linkletter, Popular Mechanics, "The Iowa Caucuses Were a Complete Mess—and We Did the Math to Prove It," 7 Feb. 2020 Real examples and applications are messy, with ugly roots made of decimals or irrational numbers. Caroline Delbert, Popular Mechanics, "Mathematician Finds Easier Way to Solve Quadratic Equations," 6 Dec. 2019 But for astronomers, decimals can make the difference between seeing something extraordinary and missing it. Author: Caleb Jones, Anchorage Daily News, "Hawaii or Spain? Telescope experts say it may not matter," 26 Aug. 2019 For example: If a dog is 3 years old, the natural log of 3 is 1.0986 (the decimals continue). Claudia Harmata, PEOPLE.com, "There's a Better Way Calculate Your Dog's True Age in Dog Years, Researchers Say," 19 Nov. 2019 But for astronomers, decimals can make the difference between seeing something extraordinary and missing it. Author: Caleb Jones, Anchorage Daily News, "Hawaii or Spain? Telescope experts say it may not matter," 26 Aug. 2019 Irrational numbers have an infinite decimal expansion. Quanta Magazine, "Why Mathematicians Can’t Find the Hay in a Haystack," 17 Sep. 2018 Many people conceptualize irrational numbers by rounding them to fractions or decimals: estimating π as 3.14, which is equivalent to 157/50, leads to widespread celebration of Pi Day on March 14th. Leila Sloman, Scientific American, "New Proof Solves 80-Year-Old Irrational Number Problem," 16 Sep. 2019 But for astronomers, decimals can make the difference between seeing something extraordinary and missing it. Author: Caleb Jones, Anchorage Daily News, "Hawaii or Spain? Telescope experts say it may not matter," 26 Aug. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'decimal.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of decimal

Adjective

1608, in the meaning defined above

Noun

1651, in the meaning defined above

History and Etymology for decimal

Adjective

French décimal, from Medieval Latin decimalis of a tithe, from Latin decima tithe — more at dime

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Time Traveler for decimal

Time Traveler

The first known use of decimal was in 1608

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Statistics for decimal

Last Updated

13 Apr 2020

Cite this Entry

“Decimal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/decimal. Accessed 25 May. 2020.

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More Definitions for decimal

decimal

adjective
How to pronounce decimal (audio)

English Language Learners Definition of decimal

 (Entry 1 of 2)

mathematics : based on the number 10

decimal

noun

English Language Learners Definition of decimal (Entry 2 of 2)

mathematics : a number that is written with a dot between the part of the number that is equal to 1 or more and the part of the number that is less than 1

decimal

adjective
dec·​i·​mal | \ ˈde-sə-məl How to pronounce decimal (audio) , ˈdes-məl \

Kids Definition of decimal

 (Entry 1 of 2)

1 : based on the number 10 : numbered or counting by tens We use a decimal system of writing numbers.
2 : expressed in or including a decimal The decimal form of ¹/₄ is .25.

decimal

noun

Kids Definition of decimal (Entry 2 of 2)

: a proper fraction in which the denominator is 10 or 10 multiplied one or more times by itself and is indicated by a point placed at the left of the numerator the decimal .2=²/₁₀, the decimal .25=²⁵/₁₀₀, the decimal .025=²⁵/₁₀₀₀

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More from Merriam-Webster on decimal

Thesaurus: All synonyms and antonyms for decimal

Spanish Central: Translation of decimal

Nglish: Translation of decimal for Spanish Speakers

Britannica English: Translation of decimal for Arabic Speakers

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