inversion

noun
in·​ver·​sion | \ in-ˈvər-zhən How to pronounce inversion (audio) , -shən \
plural inversions

Definition of inversion

1 : a reversal of position, order, form, or relationship: such as
a(1) : a change in normal word order especially : the placement of a verb before its subject
(2) : the process or result of changing or reversing the relative positions of the notes of a musical interval, chord, or phrase
b : the condition of being turned inward or inside out
c : a breaking off of a chromosome section and its subsequent reattachment in inverted position also : a chromosomal section that has undergone this process
2 : the act or process of inverting
3a : a change in the order of the terms of a mathematical proportion effected by inverting each ratio
b : the operation of forming the inverse of a magnitude, a function, an operation, or an element
4a : the conversion of dextrorotatory sucrose into a levorotatory mixture of glucose and fructose
b : a change from one stereochemical figuration at a chiral center in a usually organic molecule to the opposite configuration that is brought about by a reaction in which a substitution of one group is made for a different group
5 : an increase of temperature with height through a layer of air
6 : a corporate reorganization in which a U.S. corporation merges with or acquires a foreign corporation and restructures the U.S. corporation as a subsidiary of the newly created multinational company for the purpose of establishing a domicile in a foreign country and taking advantage of the country's corporate tax structure U.S. businesses are buying foreign companies in countries with lower tax rates so they can switch their legal home and cut their tax bills. The process, known as inversion, is the hottest trend in mergers and acquisitions, driving some of the biggest takeovers this year.— Tom Fairless and Shayndi Raice
7 dated : homosexuality also : identification with the gender role of the opposite sex

Examples of inversion in a Sentence

an inversion of the roles of parent and child Inversion of the two words changes the meaning of the sentence.
Recent Examples on the Web Much of Monsters is a deliberate inversion of expectations. Rob Salkowitz, Forbes, "Three Decades In The Making, Barry Windsor-Smith’s ‘Monsters’ Finally Makes Its Debut," 27 Apr. 2021 Another common cause of confusion is the inversion of Asian surnames and first names in voter rolls, which can result in voters being turned away. NBC News, "How a Boston suburb corrected voter rights violations against Asian Americans," 10 Dec. 2020 The inversion of her fortunes — how one pregnancy closed a door, whereas this will open another — is not just symmetrical. Robert Daniels, Los Angeles Times, "Review: Ed Helms and Patti Harrison make a perfect platonic match in ‘Together Together’," 22 Apr. 2021 On a cold winter day, when an air inversion sets in, smoke is trapped in low-lying neighborhoods for days or weeks. Anchorage Daily News, "Natural but deadly: Huge gaps exist in US rules for wood-stove smoke," 21 Mar. 2021 Most inversion tables require some setup once they’re delivered to your home. Lauren Farrell, chicagotribune.com, "How to use an inversion table," 12 Mar. 2021 The inversion—which last reached these levels a decade ago—has caught traders and investors off guard. Sebastian Pellejero, WSJ, "Crowded Bet Against 10-Year Treasury Hits Repo Market," 9 Mar. 2021 Upon certification, hybrid-electric propulsion could close this gap and could create a cost inversion where small aircraft become cheaper than traveling by auto. Dean Donovan, Forbes, "A Flood of SPAC Money Will Take You Out Of Your Car And Into The Air," 25 Feb. 2021 Another view is that the inversion in break-even rates might signal expectations that the Federal Reserve—contrary to promises—will react swiftly to cap inflation and keep it close to its 2% target . . . Andrew Stuttaford, National Review, "Stocks Yield, Stonk Soars," 26 Feb. 2021

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

1546, in the meaning defined at sense 1

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Time Traveler for inversion

Time Traveler

The first known use of inversion was in 1546

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Statistics for inversion

Last Updated

11 May 2021

Cite this Entry

“Inversion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/inversion. Accessed 14 May. 2021.

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More Definitions for inversion

inversion

noun

English Language Learners Definition of inversion

formal : a change in the position, order, or relationship of things so that they are the opposite of what they had been
weather : a condition in which air close to the ground is cooler than the air above it

inversion

noun
in·​ver·​sion | \ in-ˈvər-zhən, -shən How to pronounce inversion (audio) \

Medical Definition of inversion

1 : a reversal of position, order, form, or relationship: as
a : a dislocation of a bodily structure in which it is turned partially or wholly inside out inversion of the uterus
b : the condition (as of the foot) of being turned or rotated inward — compare eversion sense 2
d : a breaking off of a chromosome section and its subsequent reattachment in inverted position also : a chromosomal section that has undergone this process
2a : the conversion of dextrorotatory sucrose into a levorotatory mixture of glucose and fructose
b : a change from one stereochemical figuration at a chiral center in a usually organic molecule to the opposite configuration that is brought about by a reaction in which a substitution of one group is made for a different group
3 dated : homosexuality

inversion

noun
in·​ver·​sion | \ in-ˈvər-zhən How to pronounce inversion (audio) \

Legal Definition of inversion

: a corporate reorganization in which a U.S. corporation buys or merges with a foreign corporation and is restructured as a subsidiary of the newly created multinational company in order to establish a domicile in a foreign country with lower corporate taxes

called also corporate inversion, tax inversion

More from Merriam-Webster on inversion

Nglish: Translation of inversion for Spanish Speakers

Britannica.com: Encyclopedia article about inversion

Comments on inversion

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