say it: DAH-muh-nuhnt
dominant is an adjective and noun meaning "exercising influence or control". It carries 5 recorded senses.
exercising influence or control
“television plays a dominant role in molding public opinion”
“the dominant partner in the marriage”
(of genes) producing the same phenotype whether its allele is identical or dissimilar
genetics
an allele that produces the same phenotype whether its paired allele is identical or different
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for dominant come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.