dy·​ad | \ ˈdī-ˌad How to pronounce dyad (audio) , -əd \

Definition of dyad

1 : pair specifically, sociology : two individuals (such as husband and wife) maintaining a sociologically significant relationship
2 genetics : a meiotic chromosome after separation of the two homologous (see homologous sense 1a(2)) members of a tetrad
3 mathematics : an operator (see operator sense 3a) indicated by writing the symbols of two vectors (see vector entry 1 sense 1a) without a dot or cross between In the equation D = AB, AB is a dyad.

Other Words from dyad

dyadic \ dī-​ˈa-​dik How to pronounce dyad (audio) \ adjective
dyadically \ dī-​ˈa-​di-​k(ə-​)lē How to pronounce dyad (audio) \ adverb

Examples of dyad in a Sentence

the book examines the doctor-patient dyad from several perspectives
Recent Examples on the Web Marrying him was the adventure within the New York adventure, the intimate intellectual dyad within the larger intellectual circle. Maggie Doherty, The New Yorker, 15 Nov. 2021 Could the Biden administration allow a leg of the triad to age out, resulting in a dyad? Kyle Mizokami, Popular Mechanics, 13 Oct. 2021 Remember to consider desire as a broad spectrum, one that includes willingness, not just want, says Guralnik, and create conditions that emphasize a dyad, not just a family matrix. Fiorella Valdesolo, Vogue, 7 Oct. 2021 In a scene reminiscent of The Last Jedi’s throne-room slaughter, Hunter B-15 tosses a dagger to Sylvie, and the dyad of tricksters beheads one of the Time-Keepers before taking on a small battalion of Minutemen. Alex Kane, USA TODAY, 1 July 2021 In 2017 untreated perinatal mood disorders cost $14 billion in the U.S., which amounts to $31,800 per mother-infant dyad. Priya Iyer, Scientific American, 30 Mar. 2021 Human milk feedings have been shown to improve health outcomes across the life course for birthing people and their infants, increase bonding between the dyad, and reduce health care costs. Jamila K. Taylor, Scientific American, 11 Mar. 2021 The pain of this moment lies in straining to articulate a defense for the safety of one’s community because conversations around anti-Asian sentiment fall through the cracks in the dyad between black and white in the American racial consciousness. Jerrine Tan, Wired, 19 Mar. 2021 Pianist Glenn Gould famously recorded Bach’s Goldberg Variations twice, once at the start of his career and then again much later, affording the world a fascinating dyad. Zachary Lewis, cleveland, 26 Feb. 2021

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

1675, in the meaning defined at sense 1

History and Etymology for dyad

Late Latin dyad-, dyas, from Greek, from dyo — see dy-

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Last Updated

22 Nov 2021

Cite this Entry

“Dyad.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dyad. Accessed 1 Dec. 2021.

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More Definitions for dyad


variants: also diad \ ˈdī-​ˌad How to pronounce dyad (audio) , -​əd How to pronounce dyad (audio) \

Medical Definition of dyad

1 : two individuals (as husband and wife) maintaining a sociologically significant relationship
2 : a meiotic chromosome after separation of the two homologous members of a tetrad

Other Words from dyad

dyadic \ dī-​ˈad-​ik How to pronounce dyad (audio) \ adjective
dyadically \ -​i-​k(ə-​)lē How to pronounce dyad (audio) \ adverb

More from Merriam-Webster on dyad

Britannica English: Translation of dyad for Arabic Speakers


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