Definitions of dominant

1. ( music) the fifth note of the diatonic scale

2. The fifth tone of the scale; thus G is the dominant of C, A of D, and so on.

3. Dominance.

4. ( music) The fifth note of the scale in its relation to the first and third.

5. In music, the fifth note above the key- note.

6. Of the three notes essential to the tone, that which is fifth from the tonic. The dominant or sensible chord, that which is practised on the dominant of the tone, and which introduces a perfect cadence, thus- if the key be C, the dominant is G.

7. In music, the note which is a fifth from the tonic- thus, if the key or tonic be C, the dominant is G.

8. exercising influence or control; " television plays a dominant role in molding public opinion"; " the dominant partner in the marriage"

9. of genes; producing the same phenowhether its allele is identical or dissimilar

10. Exercising chief authority or control; ruling.

11. Prevailing: predominant.

12. Ruling; commanding.

13. Ruling; governing; predominant.

14. Having rule or ascendancy; ruling; prevailing.

15. Having the power or rule; possessing the ascendancy; prevailing.