A test of physical fitness in the US military, based on how far a person can run in a set period of time.

(physics) A pair of electrons (or other fermions), of opposite spin, whose theorised behaviour is the basis of the BCS theory of superconductivity.

A form of federalism in which national, state, and local governments interact cooperatively and collectively to solve common problems, rather than making separate but similar policies.

plural of Cooper test

(aviation) A mechanical aerodynamic wedge that prevents the ventral airstair of an aircraft from being lowered during flight.

plural of Cooper vane

(sociolinguistics) The idea that listeners and speakers need to cooperate in order to communicate effectively.

A river in Australia, flowing into Lake Eyre basin.

plural of Cooper pair

plural of cooperative game