overdominance
/ˌəʊvəˈdɒmɪnəns/noun
1Excessive dominance.
2 Genetics. A condition in which a heterozygote (having a copy of two different alleles of a gene) has a phenotype which falls beyond the extremes of the range represented by the corresponding homozygotes (having two copies of one or other of the alleles).
Origin
Early 20th century. From over- + dominance.
- well-offness
- well oiled
- well-omened
- well-operated
- well-opinioned
- well-orchestrated
- well-order
- well ordered
- well-ordering
- well organised
- well organized
- well-paced
- well-packed
- well packing
- well-padded
- well paid
- well-painted
- well-paired
- well-paved
- well-paying
- well-penned
- well-peopled
- well pipe
- well placed
- well planned