An excess of artificial light, especially near urban areas, reducing visibility of stars, etc. in the night sky.

To pollinate using cross-pollination

Any ecclesiastical polity as revealed by scripture.

(chemistry) polyphenylene vinylene

Politics that is dominated by rivalry between political parties

Alternative spelling of poleaxe

A form of international relations in which sovereign entities protect their own interests by threatening one another with military, economic or political aggression.

rice with the husk or outer brown layers removed; white rice

(athletics) An athlete who competes in the pole vault.

(linear algebra) Relative to a set S in Rⁿ, the set of points y such that the inner product of x and y is not positive for any point x in S.