(politics) A preliminary election to select a political candidate of a political party.

(physics) Describing a specific form of an eta meson

plural of primrose path

The office of a premier or prime minister.

plural of Primitive Methodist

A member of an early evangelical form of Methodism.

(mathematics) Any odd prime number that is not a regular prime.

(mathematics) A prime number belonging to one of the two groups that prime numbers are divided into. The other group is the irregular primes.

plural of primeval forest

(telecommunications) an ISDN service delivered over T1, E1 or J1 datalines, with delivery of connections between 1472 kilobits per second and 1984 kilobits per second (kibibits)