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 unobtainium Definition: Unobtainium is a extremely rare and costly material that is usually physically impossible to obtain. It is extremely useful and is required for build various devices including frictionless bearings and perpertial motion machines. It is sometimes referred to as element 404. Usage: That is practically impossible to build, it is made mostly from unobtainium. Posted by FlyingPete on May 21, 2009 at 18:43:07 Pacific |
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