linebreeding

linebreeding [lahyn-bree-ding] Word Origin noun Genetics.

1. a form of inbreeding directed toward keeping the offspring closely related to a superior ancestor.

Origin of linebreeding An Americanism dating back to 1875–80; line1 + breeding 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