Dictionary.com

ultrashort

[ uhl-truh-shawrt ]
/ ˌʌl trəˈʃɔrt /

adjective

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

QUIZZES

TAKE THIS QUIZ IF A DAZZLING VOCABULARY IS YOUR DESIDERATUM!

Have the Words of the Day from October 19–25, 2020, made an indelible mark on your memory? Take the quiz to find out!
Question 1 of 7
What does “clement” mean?
having or claiming to have the power of seeing objects or actions beyond the range of natural vision.
mild or merciful in disposition or character; lenient; compassionate.
favorite; cherished.
TAKE THE QUIZ TO FIND OUT

Origin of ultrashort

First recorded in 1925–30; ultra- + short

Words nearby ultrashort

ultranet, ultrapure, ultrared, ultraright, ultrarightist, ultrashort, ultrasonic, ultrasonic cleaning, ultrasonics, ultrasonic testing, ultrasonic welding
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for ultrashort

ultrashort
/ (ˌʌltrəˈʃɔːt) /

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