top·cross
| \ ˈtäp-ˌkrȯs
\
\
Definition of topcross
: a cross between a superior or purebred male and inferior female stock to improve the average quality of the progeny
also
: the product of such a cross
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“Topcross.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/topcross. Accessed 25 May. 2022.
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Time Traveler for topcross
The first known use of topcross was in 1890
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