1 reciprocal | Definition of reciprocal

reciprocal

adjective
re·​cip·​ro·​cal | \ ri-ˈsi-prə-kəl How to pronounce reciprocal (audio) \

Definition of reciprocal

 (Entry 1 of 2)

1a : inversely related : opposite
b : of, constituting, or resulting from paired crosses in which the kind that supplies the male parent of the first cross supplies the female parent of the second cross and vice versa
2 : shared, felt, or shown by both sides
3 : serving to reciprocate : consisting of or functioning as a return in kind the reciprocal devastation of nuclear war
4a : mutually corresponding agreed to extend reciprocal privileges to each other's citizens
b : marked by or based on reciprocity reciprocal trade agreements

reciprocal

noun

Definition of reciprocal (Entry 2 of 2)

1 : something in a reciprocal relationship to another
2 : either of a pair of numbers (such as ²/₃ and ³/₂ or 9 and ¹/₉) whose product is one broadly : multiplicative inverse

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Other Words from reciprocal

Adjective

reciprocally \ ri-​ˈsi-​prə-​k(ə-​)lē How to pronounce reciprocally (audio) \ adverb

Synonyms & Antonyms for reciprocal

Synonyms: Adjective

complementary, correlative, supplemental, supplementary

Antonyms: Adjective

noncomplementary, nonreciprocal

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Did You Know?

In Latin, reciprocus means "returning the same way" or "alternating". So in a reciprocating engine, like the one in your car, the pistons move back and forth, and that motion is transformed into the rotary motion of the crankshaft. A reciprocal is a pair of numbers (such as 5/6 and 6/5) that can be multiplied to produce 1. Reciprocity (with the accent on the third syllable) between two nations means they agree to recognize certain things granted in one country as being valid in the other—for example, your driver's license.

Examples of reciprocal in a Sentence

Adjective

the two nations agreed to give reciprocal work rights to each other's citizens, thus facilitating the daily border crossings of workers from both countries

Recent Examples on the Web: Adjective

Trump has imposed or threatened to impose tariffs on all three markets in his pursuit of free, fair and reciprocal trade. Darlene Superville, chicagotribune.com, "Trump shares ‘second thoughts’ about China tariffs, but White House later says his only regret is not hiking them higher," 25 Aug. 2019 Trump has imposed or threatened to impose tariffs on all three markets in his pursuit of free, fair and reciprocal trade. Darlene Superville, Twin Cities, "Economic storm clouds hovering over Trump and global leaders," 24 Aug. 2019 Senator Murkowski shares the administration’s desire to ensure fair and reciprocal trade. Lydia Depillis, ProPublica, "Bibles but Not Textbooks: Trump’s Tariff Exemptions Pick Winners and Losers," 22 Aug. 2019 Mandelup walks the tightest of ropes, exposing the reciprocal delusions fuelling these transactions, juxtaposing the audience’s horror with her subjects’ excruciating pragmatism. Doreen St. Félix, The New Yorker, "“Jawline,” Reviewed: A Chilling Look at the Making of a Teen Influencer," 27 Aug. 2019 After years of reciprocal abuse, most of it levelled by the M5S at the PD, mistrust between the two parties runs deep. The Economist, "Italy’s would-be strongman suddenly looks more vulnerable," 15 Aug. 2019 Kim's late father, Kim Jong Il, had promised reciprocal visits when South Korean leaders visited him in Pyongyang in 2000 and 2007. Fox News, "The Latest: Trump welcomes 'tremendous progress' with NKorea," 19 Sep. 2018 Other women's wild cards went to Francesca Di Lorenzo, Whitney Osuigwe, Kristie Ahn and Katie Volynets of the U.S., along with 16-year-old Diane Parry of France, who got her country's reciprocal invitation. Howard Fendrich, sun-sentinel.com, "Delray Beach 15-year-old Coco Gauff gets U.S. Open wild-card entry," 13 Aug. 2019 Other women's wild cards went to Francesca Di Lorenzo, Whitney Osuigwe, Kristie Ahn and Katie Volynets of the U.S., along with 16-year-old Diane Parry of France, who got her country's reciprocal invitation. Howard Fendrich, courant.com, "15-year-old American Coco Gauff gets US Open wild-card entry," 13 Aug. 2019

Recent Examples on the Web: Noun

For now, one hint that TKV may have an edge is that the reciprocals of the series of angles produced by the model, unlike those in the older model, follow a nearly periodic progression. Quanta Magazine, "What’s the Magic Behind Graphene’s ‘Magic’ Angle?," 28 May 2019

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

Adjective

1570, in the meaning defined at sense 1a

Noun

1570, in the meaning defined at sense 1

History and Etymology for reciprocal

Adjective

Latin reciprocus returning the same way, alternating

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More Definitions for reciprocal

reciprocal

adjective

English Language Learners Definition of reciprocal

used to describe a relationship in which two people or groups agree to do something similar for each other, to allow each other to have the same rights, etc.

reciprocal

noun
re·​cip·​ro·​cal | \ ri-ˈsi-prə-kəl How to pronounce reciprocal (audio) \

Kids Definition of reciprocal

: one of a pair of numbers (as 9 and ¹/₉, ²/₃ and ³/₂) whose product is one

reciprocal

adjective
re·​cip·​ro·​cal | \ ri-ˈsip-rə-kəl How to pronounce reciprocal (audio) \

Medical Definition of reciprocal

1 : inversely related