irbm

Intermediate Range Ballistic Missile.

Similar to ICBM but with smaller range .By definition, range if the range is smaller then 4000 mi, it's an IRBM.

"Ballistic" in this case means that the missile does not depend on anything like a wing for lift (it may or may not have small fins, though.
The V2 was the first IRBM.
by meselfs January 13, 2005
mugGet the irbmmug.

Bifurcate

A bifurcation is when a small change in something causes a big change in something else.

This word comes from math; specifically it refers to the solution of a differential equation taking a big change as the value of a parameter crosses a certain number.
The small increase fishing bifurcated the fish population.
by meselfs January 12, 2005
mugGet the Bifurcatemug.