exahertz
/ˈɛksəˌhɜrts/
noun
- A unit of frequency equal to one quintillion (10^18) hertz, used to measure extremely fast electromagnetic waves or computer processor speeds.
- An exahertz is a billion gigahertz, which is almost unimaginably fast.
- The new telescope can detect radiation at frequencies up to several exahertz.
- Scientists are working on computers that could one day reach speeds of one exahertz.