dominant
Pronunciation: /ˈdɒmɪnənt/
adjective
- having power and influence over others: they are now in an even more dominant position in the market
- (of a high place) overlooking others.
- Genetics relating to or denoting heritable characteristics which are controlled by genes that are expressed in offspring even when inherited from only one parent: it is the dominant gene causing polydactyly the mutant allele is dominant to the wild typeOften contrasted with recessive.
- Ecology denoting the predominant species in a plant (or animal) community: red spruce is a dominant species in many types of forest
- (in decision theory) denoting a choice that is at least as good as the alternatives in all circumstances, and better in some: holding back is here a dominant strategy
noun

Origin:
late Middle English: via Old French from Latin dominant- 'ruling, governing', from the verb dominari (see dominate)