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:of, relating to, or being a transformation (such as a translation, a rotation, or a uniform stretching) that carries straight lines into straight lines and parallel lines into parallel lines but may alter distance between points and angles between lines
affine geometry
affinelyadverb
Examples ofaffine in a Sentence
Recent Examples on the Web
Jason Daley,Smithsonian, 1 Nov. 2019Bruce M. Boghosian,Scientific American, 1 Nov. 2019
Examples are automatically compiled from online sources to show current usage.Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.Send us feedback.
Noun
Ruby Prosser Scully at New Scientist reports that the researchers found a species called Sphagnumaffine, or bog moss, in Ötzi’s colon.—Jason Daley,Smithsonian, 1 Nov. 2019Adjective
Theaffinewealth model has been applied to empirical data from many countries and epochs.—Bruce M. Boghosian,Scientific American, 1 Nov. 2019Word History
Etymology
Noun
borrowed from Anglo-Frenchaffin, going back to Latinaffīnis "neighbor, relation by marriage," noun derivative ofaffīnis "bordering (on), related by marriage" — more ataffinity
Adjective
borrowed from New Latinaffīnis, taken to mean "having affinity," going back to Latin, "bordering (on), connected (with)" — more ataffinity
Rhymes foraffine
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Cite this Entry
“Affine.”Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/affine. Accessed 15 Apr. 2025.
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Etymology
Noun
Middle Frenchaffin, from Latinaffinis, fromaffinis related, fromad to +finis end, border
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