Subscriber login
Password
Forgot your password?
Library card login
Login with Shibboleth® »
Login with Athens »
Close menu
Oxford Dictionaries Online
The world's most trusted dictionaries
About
Subscriber services
What's new
Contact us
Help
Subscribe now
Already a subscriber or in a subscribing organization?
Login
Dictionary
Other language resources
US English
World English
Dictionary
Better writing
World of words
Puzzles and games
For children and schools
For learners of English
Email
Cite
ultra-
Pronunciation:
/ˈʌltrə/
prefix
1
to an extreme degree; very:
ultramicroscopic
2
beyond; on the other side of:
ultramontane
Often contrasted with
cis-
.
Origin:
from Latin
ultra
'beyond'
Search results in the dictionary
ultra
ultra vires
ultra-modern
ne plus ultra
ultra-high frequency (abbreviation: UHF)
ultracold
More results »
Nearby Words
ultimate
ultimately
ultimatum
ultimo
ultimobranchial
ultimogeniture
ultisol
ultra
ultra vires
ultra-
ultra-high frequency
ultra-modern
ultrabasic
ultracentrifuge
ultracold
ultraconservative
ultradian
ultrafiltration
ultraist