nt]
| 1. | ruling, governing, or controlling; having or exerting authority or influence: dominant in the chain of command. |
| 2. | occupying or being in a commanding or elevated position. |
| 3. | predominant; main; major; chief: Corn is the dominant crop of Iowa. |
| 4. | Genetics. of or pertaining to a dominant. |
| 5. | Music. pertaining to or based on the dominant: the dominant chord. |
| 6. | Genetics.
|
| 7. | Music. the fifth tone of a diatonic scale. |
| 8. | Ecology. any of one or more types of plants, or sometimes animals, that by virtue of abundance, size, or habits exert so important an influence on the conditions of an area as to determine, to a great extent, what other organisms can live there. |

dominant dom·i·nant (dŏm'ə-nənt)
adj.
Exercising the most influence or control.
Of, relating to, or being an allele that produces the same phenotypic effect whether inherited with a homozygous or heterozygous allele.
A dominant allele or trait.
An organism having a dominant trait.