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linebreeding

[lahyn-bree-ding] /ˈlaɪnˌbri dɪŋ/
noun, Genetics.
1.
a form of inbreeding directed toward keeping the offspring closely related to a superior ancestor.
Origin
1875-1880
1875-80, Americanism; line1 + breeding
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for line breeding

line breeding

noun
1.
selective inbreeding that produces individuals possessing one or more of the favourable characteristics of their common ancestor
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
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