Definitions
1.nounThe fifth major tone of a musical scale (five major steps above the note in question); thus G is the dominant of C, A of D, and so on.
2.nounThe triad built on the dominant tone.
3.nounA gene that is dominant.
4.nounA species or organism that is dominant.
5.noun(BDSM) The dominating partner in sadomasochistic sexual activity.
6.adjectiveRuling; governing; prevailing"The dominant party controlled the government."
7.adjectivePredominant, common, prevalent, of greatest importance."The dominant plants of the Carboniferous were lycopods and early conifers."
8.adjectiveDesignating the follicle which will survive atresia and permit ovulation.