Definition of "ultrafast" []

• Very fast, or of very short duration; especially concerning events that take place in femtosecond or picosecond timescales. (adjective)

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• "Electron beam computed tomography (EBCT) is also called ultrafast CT."
• "Zewail and his colleagues have achieved this by introducing the fourth dimension of time into high-resolution electron microscopy, in what has been termed ultrafast "single-electron" imaging, where every electron trajectory is precisely controlled in time and space."
• "· Includes its own CD ripper with 'ultrafast' rip mode and cddb music database lookup."