ultrashort

[uhl-truh-shawrt]

adjective

extremely short.
(of a wavelength) smaller than 10 meters.

Nearby words

  1. ultranet,
  2. ultrapure,
  3. ultrared,
  4. ultraright,
  5. ultrarightist,
  6. ultrasonic,
  7. ultrasonic cleaning,
  8. ultrasonic testing,
  9. ultrasonic welding,
  10. ultrasonics

Origin of ultrashort

First recorded in 1925–30; ultra- + short

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019


British Dictionary definitions for ultrashort

ultrashort

adjective

(of a radio wave) having a wavelength shorter than 10 metres
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