dom•i•nateˈdɒm əˌneɪt(v.)-nat•ed, -nat•ing.

1. (v.t.)to rule over; control.

2. to tower above; overlook.

3. to be the major factor or influence in.

4. Math. (of a series, vector, etc.) to have terms or components greater in absolute value than the corresponding terms or components of a given series, vector, etc.

5. (v.i.)to exercise power or control; predominate; rule.

6. to occupy a commanding or elevated position.

Origin of dominate:

1605–15; < L dominātus, ptp. of dominārī to master, control

dom′i•na`tor(n.)