1. Plural of codominant; alleles or traits that are both fully expressed in a heterozygous organism without blending.
Usage: genetics; biology
2. In ecology, species that share dominance in a community or ecosystem, each exerting significant influence on the environment.
Usage: ecology; environmental science

Examples

• In human blood types, the A and B alleles are codominants, so AB blood type shows both antigens.
• The codominants in the forest were oak and maple trees, which together shaped the habitat.
• When two codominants are present, both traits appear equally in the offspring.
• The study identified three codominants competing for resources in the coral reef ecosystem.
• Codominants in genetics differ from incomplete dominance because both alleles are fully expressed.