Exceeding others in quality or rank; of outstanding excellence, extremely notable or important.

(transitive) To appropriate first. / (transitive) To displace or take the place of (by having higher precedence, etc).

(bridge) A preemptive bid.

To exist before something else.

plural of preemie (a perinatal child with fewer than 37 weeks gestation).

(informal) A baby that has been born prematurely

(pathology) A complication of pregnancy, affecting about 2-20% of women, depending on location, characterized by hypertension and damage to the linings of the blood vessels of the brain, liver, lungs and kidneys, which can lead to multiple organ failure, convulsions, coma and death. The only cure is delivery of the child.

present participle of preempt

The status of being preeminent, dominant or ascendant. / High importance; superiority.

In a preeminent manner.