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2 definitions by PatMan33

A device that contains 2 pieces of Uranium-235, when they collide the nucleus' split releasing neutrons that in turn hit other Uranium nucleus' starting a Charin Reaction which if uncontrolled, will make everything go BOOM!
When the A-Bomb is dropped it goes BOOM!
by PatMan33 September 30, 2003
A unit of biological dose of radiation; the name is derived from the initial letters of the term
"roentgen equivalent mammal (or man)".
REM Levels of 20-100 cause a shortage in white blood cells.
by PatMan33 September 22, 2003