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definitions

cultivar

[kuhl-tuh-vahr, -ver]

noun

a variety of plant that originated and persisted under cultivation.

Origin of cultivar

1920–25; blend of cultivated and variety
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for cultivar

cultivar

noun

a variety of a plant that was produced from a natural species and is maintained by cultivation

Word Origin for cultivar

C20: from culti (vated) + var (iety)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for cultivar
n.

1923, from culti(vated) var(iety), coined by U.S. horticulturalist Liberty Hyde Bailey (1858-1954) in "Gentes Herbarum."

Online Etymology Dictionary, © 2010 Douglas Harper
cultivar in Science

cultivar

[kŭl′tə-vär′, -vâr′]

A variety of a plant that has been created or selected intentionally and maintained through cultivation.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.