EPR

Etymology 1
Abbreviation

Noun

 * 1)   the ratio of pressure between exhaust and inlet of a jet engine.
 * , a type of nuclear reactor.
 * , a type of nuclear reactor.

Etymology 2
From the initials of the three theoreticians to conceived of the paradox,,  ,.

Derived terms

 * a conjecture about the nature of the universe that connects quantum physics to spacetime physics
 * a conjecture to communicate non-locally, faster than light, back in time