it·​er·​a·​tion | \ ˌi-tə-ˈrā-shən How to pronounce iteration (audio) \

Definition of iteration

1 : the action or a process of iterating or repeating: such as
a : a procedure in which repetition of a sequence of operations yields results successively closer to a desired result
b : the repetition of a sequence of computer instructions a specified number of times or until a condition is met — compare recursion
2 : one execution of a sequence of operations or instructions in an iteration
3 : version, incarnation the latest iteration of the operating system

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Examples of iteration in a Sentence

your constant iteration of the same piddling complaints is wearing thin

Recent Examples on the Web

But the Supreme Court, led by Roberts, accepted his ex post facto rationale for the ban’s third iteration. Matt Ford, The New Republic, "The Supreme Court Seems Oddly Ambivalent About Being Lied To," 27 June 2019 Along the same street in Houston's hip Montrose neighborhood, Shepherd also unveiled the third iteration of One Fifth, exploring the Mediterranean and becoming excited about making hummus, merguez, khachapuri and kataifi. Greg Morago, Houston Chronicle, "The world’s best chef? He's right here in Houston," 6 June 2019 For the iPhone, Apple touted the security features of iOS 13, the next iteration of the iPhone operating system. Rex Crum, The Mercury News, "Apple uses developers conference to bid adieu to iTunes, show new system updates," 3 June 2019 These greenhouse vegetables are the stars of one of several scientific projects underway at Neumayer Station III, the third iteration of a German research facility run by the polar science-focused Alfred Wegener Institute. Esther Horvath, National Geographic, "Want to grow plants in space? Go to the coldest place on Earth.," 15 Mar. 2019 The president did win one significant victory: The Supreme Court ruled in June that the third iteration of his ban on travel from certain Muslim-majority countries could be enacted. WSJ, "Immigration, Mueller Probe Boosted U.S. Tensions This Year," 18 Dec. 2018 By the third iteration in 1998, Smokin’ Grooves established its presence as a showcase for hip-hop that wasn’t branded in sexism or violence. Eric Diep, Billboard, "Erykah Badu, Miguel & More Bring Back the Spirit of Smokin' Grooves in Long Beach," 17 June 2018 For now, the Supreme Court has allowed the third iteration of the travel ban to go fully into effect pending the resolution of the issue by late June. CNN, "Appeals court rules against latest Trump travel ban," 27 Mar. 2018 Still, those laws are just the most recent iterations of restrictions that have made clinics that provide abortions vanishingly rare. Adam Rogers, WIRED, "Telemedicine Makes It Safe to Get Abortion Drugs in the Mail," 5 June 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'iteration.' 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 iteration

15th century, in the meaning defined at sense 1

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Dictionary Entries near iteration



iterated integral




it figures

Statistics for iteration

Last Updated

9 Jul 2019

Look-up Popularity

Time Traveler for iteration

The first known use of iteration was in the 15th century

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Comments on iteration

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


an act or instance of editing or removing

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