Dictionary.com
Thesaurus.com

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.

In both species, the researchers identified the presence of Dynamin1xA, a protein required for ultrafast synaptic membrane recycling, at the locations where endocytosis is believed to take place.

From Science Daily

"Our findings indicate that the molecular mechanism of ultrafast endocytosis is conserved between mice and human brain tissues," Watanabe says.

From Science Daily

When the scientists added an ultrafast heating mechanism affecting atomic positions, the revised model more closely matched the experiment.

From Science Daily

"This is an exciting discovery that opens up new possibilities for the development of a robust platform for ultrafast information storage," says Andrea Cavalleri.

From Science Daily

This exceptional speed points to a promising path for ultrafast, low-power computing.

From Science Daily