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ultra - 5 dictionary results
ul⋅tra
[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. |
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:
< L ultrā (adv. and prep.) on the far side (of), beyond, deriv. of *ult(e)r- located beyond
< L ultrā (adv. and prep.) on the far side (of), beyond, deriv. of *ult(e)r- located beyond

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source
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Link To ultra
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Ultra
Ul"tra\, a. [See Ultra-.] Going beyond others, or beyond due limit; extreme; fanatical; uncompromising; as, an ultra reformer; ultra measures.Ultra
Ul"tra\, n. One who advocates extreme measures; an ultraist; an extremist; a radical. --Brougham.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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