Dictionary
EMP
electromagnetic pulse: a burst of electromagnetic energy produced by a nuclear explosion in the atmosphere, considered capable of widespread damage to power lines, telecommunications, and electronic equipment.
Emp.
1. Emperor.
2. Empire.
3. Empress.
emp.
(in prescriptions) a plaster.
e.m.p.
(in prescriptions) after the manner prescribed; as directed.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.