ran·​dom·​ize | \ ˈran-də-ˌmīz How to pronounce randomize (audio) \
randomized; randomizing

Definition of randomize

transitive verb

: to select, assign, or arrange in a random way

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Other Words from randomize

randomization \ ˌran-​də-​mə-​ˈzā-​shən How to pronounce randomization (audio) \ noun
randomizer noun

Examples of randomize in a Sentence

The numbers have been randomized. A randomized study of patients treated with the drug showed it to be effective.
Recent Examples on the Web The new therapies were tested in a multi-drug, randomized, controlled trial conducted on the front lines of the Ebola outbreak since November. oregonlive, "Ebola cure? Scientists discover two highly effective drugs," 13 Aug. 2019 There is also a crying need to evaluate violence-prevention policies and programs based on data about individuals who participate in large randomized controlled trials—the scientific gold standard for determining causes and effects. The Editors, Scientific American, "The U.S. Congress Has Started to Revive Gun Violence Research—and Must Follow Through," 30 July 2019 Her study, like the University of Michigan's, is a randomized, controlled trial — one group of women got to use VR headsets while others didn't. Rachel Metz, CNN, "Breathe, focus, headset: The women turning to VR in labor," 8 Sep. 2019 The new therapies were tested in a multi-drug, randomized, controlled trial conducted on the front lines of the Ebola outbreak since November. Claire Parker, Washington Post, "Ebola no longer ‘incurable,’ scientists say, after discovery of two highly effective drugs," 12 Aug. 2019 In the coming months, Ovid will enroll 60 Angelman patients between the ages of 4 and 12, randomizing them to receive either OV101 or placebo. Damian Garde, BostonGlobe.com, "Ovid begins late-stage trial for rare disease treatment, defying Wall Street’s expectations," 27 June 2019 Researchers reviewed 46 previously published reports of 36 randomized controlled trials involving testosterone treatment that were completed between 1990 and 2018. Jacqueline Howard, CNN, "Testosterone can enhance libido in postmenopausal women, new research says," 25 July 2019 The catch, however, is that a security protection in Windows known as address space layout randomization, or ASLR, randomizes the location of code in memory. Andy Greenberg, WIRED, "Why Microsoft’s BlueKeep Bug Hasn’t Wreaked Havoc—Yet," 17 July 2019 Although today algorithms choose from a list of eligible citizens, for a brief period, some states relied on an arcane process for randomizing their jury lists: put the names of candidates in a box and have kids pick the winners. Michael Waters, Smithsonian, "When 6-Year-Olds Chose Jury Candidates," 11 July 2019

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

1926, in the meaning defined above

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Statistics for randomize

Last Updated

24 Oct 2019

Time Traveler for randomize

The first known use of randomize was in 1926

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More Definitions for randomize


How to pronounce randomize (audio)

English Language Learners Definition of randomize

technical : to arrange or choose (something) in a random way or order : to make (something) random

More from Merriam-Webster on randomize

Nglish: Translation of randomize for Spanish Speakers

Comments on randomize

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


not being in agreement or harmony

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