Definition of "ultrarapid" []

• Extremely rapid; so rapid that it may include to occur in femtoseconds or in a attosecond. (adjective)

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• "Five of the six guests were convinced that dramatic advances in a number of areas, including chemistry, optics, and computing, would be harnessed into an affordable bench-top instrument for ultrarapid DNA sequencing in the near future."
• "The solution thus is that codeine is bioactivated by CYP2D6 into morphine, certain patients show an ultrarapid form of this metabolism, which leads to a life-threatening intoxication see Gasche et al."
• "Looking further ahead one can see, for example, the possibility of building ultrarapid trains that run on superconducting tracks."