ultra

[uhl-truh]
adjective
1.
going beyond what is usual or ordinary; excessive; extreme.
noun
2.
an extremist, as in politics, religion, fashion, etc.
3.
(initial capital letter) Military. the British code name for intelligence gathered by decrypting German wireless communications enciphered on the Enigma machine during World War II.

Origin:
independent use of ultra-, or shortening of words prefixed with it

Dictionary.com Unabridged

ultra-

a prefix occurring originally in loanwords from Latin, with the basic meaning “on the far side of, beyond.” In relation to the base to which it is prefixed, ultra-, has the senses “located beyond, on the far side of” (ultramontane; ultraviolet ), “carrying to the furthest degree possible, on the fringe of” (ultraleft; ultramodern ), “extremely” (ultralight ); nouns to which it is added denote, in general, objects, properties, phenomena, etc., that surpass customary norms, or instruments designed to produce or deal with such things (ultramicroscope; ultrasound; ultrastructure ).

Origin:
< Latin ultrā (adv. and preposition) on the far side (of), beyond, derivative of *ult(e)r- located beyond

ne plus ultra

[ne ploos ool-trah; English nee pluhs uhl-truh, ney]
Latin.
1.
the highest point; acme.
2.
the most intense degree of a quality or state.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To ultra
Collins
World English Dictionary
ne plus ultra (ˈneɪ ˈplʊs ˈʊltrɑː)
 
n
the extreme or perfect point or state
 
[literally: not more beyond (that is, go no further), allegedly a warning to sailors inscribed on the Pillars of Hercules at Gibraltar]

ultra (ˈʌltrə)
 
adj
1.  extreme or immoderate, esp in beliefs or opinions
 
n
2.  an extremist
 
[C19: from Latin: beyond, from ulter distant]

ultra-
 
prefix
1.  beyond or surpassing a specified extent, range, or limit: ultramicroscopic
2.  extreme or extremely: ultramodern
 
[from Latin ultrā beyond; see ultra]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Etymonline
Word Origin & History

ultra-
prefix meaning "beyond" (ultraviolet) or "extremely" (ultramodern), from L. ultra- from ultra (adv. and prep.) "beyond, on the further side," from PIE *al- "beyond." In common use from early 19c., it appears to have arisen from Fr. political designations. As its own word, a noun meaning "extremist" of
various stripes, it is first recorded 1817, from Fr. ultra, shortening of ultra-royaliste "extreme royalist."

ne plus ultra
"utmost limit to which one can go," 1638, from L., lit. "no more beyond," traditionally inscribed on the Pillars of Hercules.
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
American Heritage
Medical Dictionary

ultra- pref.

  1. Beyond; on the other side of: ultraviolet.

  2. Beyond the range, scope, or limit of: ultrasonic.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
Example sentences
It degrades in ultra-violet light but provides control on plant surfaces for up
  to seven days.
We sat on the roof deck, where the ambience was ultra-simple: a sheet of brown
  paper laid across a picnic table.
Previous experiments had managed the feat at ultra-cold temperatures, or by
  using exotic semiconductors such as gallium arsenide.
Also much ozone to continually block out ultra-violet rays.
Related Words
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature