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ultrafast

American  
[uhl-truh-fast, -fahst] / ˌʌl trəˈfæst, -ˈfɑst /

adjective

  1. extremely fast.

    ultrafast computers.


ultrafast British  
/ ˈʌltrəˌfɑːst /

adjective

  1. extremely fast

    an ultrafast internet connection

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of ultrafast

ultra- + fast 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The review also outlines fast-moving developments in multidimensional entanglement, ultrafast temporal structuring, advanced nonlinear detection techniques, and compact on-chip devices that can generate or process higher-dimensional quantum light than ever before.

From Science Daily

To test how well the system worked, the team built an ultrafast terahertz measurement setup that allowed them to observe the light pulse as it traveled through space.

From Science Daily

In the online food-delivery business, the three major players—Meituan, Alibaba and JD.com—have burned cash by showering customers with aggressive discounts amid soft consumer demand, making ultrafast delivery of things such as milk tea and takeout often cheaper than eating out or cooking at home.

From The Wall Street Journal

"It's a future-proofed, ultrafast power module that will make the next generation of power converters more affordable, efficient, and compact."

From Science Daily

Because these components are compatible with monolithic integration in photonic integrated circuits, they may also enable a wide range of future technologies, including broad-band imaging and ultrafast spectroscopy operating on femtosecond timescales.

From Science Daily