topcross
/ˈtɑpˌkrɔs/
noun
- In animal or plant breeding, the offspring resulting from crossing a purebred or inbred male with an unrelated female, often to improve traits.
- The farmer used a topcross to improve the milk yield of his herd.
- The corn variety was developed through a topcross breeding program.
- These topcross pigs grow faster than the purebred ones.
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