overdominance

English

Etymology

From over- +‎ dominance.

Noun

overdominance (uncountable)

1. (genetics) The case in which a heterozygote has a higher fitness or more extreme phenotype than either homozygote.
2. Excessive dominance.

Related terms

• dominance

Further reading

• overdominance on Wikipedia.Wikipedia
• “overdominance”, in Collins English Dictionary.