mi·cro | \ˈmī-(ˌ)krō \

Definition of micro 

(Entry 1 of 2)

1 : very small especially : microscopic

2 : involving minute quantities or variations


plural micros

Definition of micro (Entry 2 of 2)

Examples of micro in a Sentence

Recent Examples on the Web: Adjective

These micro-canines have gone beyond the teacup poodle to the single-shot-espresso-cup poodle. John Kelly, Washington Post, "If your air bag inflates, you don’t want your feet on the dashboard," 9 July 2018 Maya Tisdale was born in 2013 as a micro preemie, weighing one pound and 10 ounces. Deasia Paige, Detroit Free Press, "This Michigan girl, 4, with cerebral palsy just took her first steps," 6 July 2018 My purse is always ready with my Sony RX100 camera; my charger for its terrible battery; two of my three portable batteries; two wall-charging blocks; a converter plug; and both a micro-USB and an iPhone cord. Jada Yuan, New York Times, "How Do You Pack for a Yearlong Trip?," 27 June 2018 And as of late, many celebs are getting bangs too: In May 2018, Bella's sister, Gigi, showed off a curly mop of bangs on Instagram, and in January, Emma Watson unveiled a new set of micro bangs, inspiring a slew of adoring comments in her post. Zoë Weiner, Teen Vogue, "Bella Hadid Gets Sideswept Bangs for Summer," 21 June 2018 But once the novel zooms down to the micro-level, all details are invented. Mary Carole Mccauley, baltimoresun.com, "Anne Tyler's latest novel evokes Hamilton. Here are possible real-life stand-ins for locations in 'Clock Dance'," 13 July 2018 This soft, rainbow highlighter creates a silvery sheen with micro-pigments that is guaranteed to dazzle. Aliza Kelly Faragher, Allure, "What July's Pisces Horoscope Means for You," 29 June 2018 As a black woman, the effects of white supremacy and privilege, as well as micro-aggressions, can take an emotional toll. Sonja R. Herbert, SELF, "I’m a Fitness Instructor With Depression, and I Want You To Know About It," 22 June 2018 The profits are small because markets and individual farmers process micro-payments, often as little as a few dollars. Jane Black And Leah Douglas, chicagotribune.com, "Some food stamp recipients may soon lose access to farmers market benefits," 12 July 2018

Recent Examples on the Web: Noun

Amazingly, not long ago this thriving micro-farm was a scrappy expanse of grass and weeds. Louisa Shafia, Good Housekeeping, "Everything You Need to Know About Starting a Vegetable Garden," 3 May 2018 For this listener, the micro-inflections in phrasing and dynamics often worked against the music’s broader expressive arc, but the performance overall drew hearty approval from the Shed audience. Jeremy Eichler, BostonGlobe.com, "Tanglewood opens with Bernstein’s exuberance, Lang Lang’s return," 8 July 2018 Sullivan and Cesario met while working for ethical fashion brands based in Uganda, helping impoverished women gain skills, savings, and eventually the money and know-how to start their own micro-enterprises. Hannah Wallace, Bon Appetit, "The Nut Butter Company Helping Formerly Homeless and Trafficked Women Build New Careers," 14 May 2018 The advent of arcades was as novel as the contemporary use of the micro-transactions common in mobile games now. Lindsay Grace, Smithsonian, "The Original ‘Space Invaders’ is an Icon of 1970s America’s Deepest Fears," 19 June 2018 For starters, does micro-dystrophin have the same functional benefit for patients as normal dystrophin? Adam Feuerstein, STAT, "With tantalizing early results, Sarepta’s gene therapy for Duchenne raises hopes for ‘real change’," 19 June 2018 Use a micro-liner pencil to create natural, hair-like strokes. Leah Prinzivalli, Teen Vogue, "Camila Mendes Reveals Her Favorite Eyebrow Products," 19 June 2018 The material uses thin metal micro-wires embedded with an electric current, which can change the wires’ temperature. Marco Santana, OrlandoSentinel.com, "UCF researchers develop color-changing fabric," 15 May 2018 In an era of brute-force micro-messaging, partisanship trumps statesmanship, pandering trumps policymaking. Nicholas Carr, chicagotribune.com, "Is Facebook the problem with Facebook, or is it us?," 10 July 2018

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


1923, in the meaning defined at sense 1


1971, in the meaning defined at sense 1

History and Etymology for micro



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Last Updated

13 Oct 2018

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The first known use of micro was in 1923

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More Definitions for micro


mi·cro | \ˈmī-(ˌ)krō \

Medical Definition of micro 

1 : very small especially : microscopic

2 involving minute quantities or variations

More from Merriam-Webster on micro

Spanish Central: Translation of micro

Britannica English: Translation of micro for Arabic Speakers

Comments on micro

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


a state of commotion or excitement

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