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ultraviolet
7 dictionary results for: Ultraviolet
Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This
ul·tra·vi·o·let 
[uhl-truh-vahy-uh-lit] Pronunciation Key
[uhl-truh-vahy-uh-lit] Pronunciation Key –adjective
–noun
| 1. | beyond the violet in the spectrum, corresponding to light having wavelengths shorter than 4000 angstrom units. |
| 2. | pertaining to, producing, or utilizing light having such wavelengths: an ultraviolet lamp. |
| 3. | ultraviolet radiation. |
Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.
American Heritage Dictionary - Cite This Source - Share This
| ul·tra·vi·o·let
(ŭl'trə-vī'ə-lĭt) Pronunciation Key
adj. Abbr. UV Of or relating to the range of invisible radiation wavelengths from about 4 nanometers, on the border of the x-ray region, to about 380 nanometers, just beyond the violet in the visible spectrum. n. Ultraviolet light or the ultraviolet part of the spectrum. |
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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Online Etymology Dictionary - Cite This Source - Share This
ultraviolet
ultraviolet
"beyond the violet end of the visible spectrum," 1840, from ultra- + violet. Ultra-red (1870) was a former name for what now is called infra-red.
Online Etymology Dictionary, © 2001 Douglas Harper
WordNet - Cite This Source - Share This
| ultraviolet | |
adjective | |
| 1. | having or employing wavelengths shorter than light but longer than X-rays; lying outside the visible spectrum at its violet end; "ultraviolet radiation"; "an ultraviolet lamp" |
noun | |
| 1. | radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays |
WordNet® 3.0, © 2006 by Princeton University.
The American Heritage Science Dictionary - Cite This Source - Share This
| ultraviolet
(ŭl'trə-vī'ə-lĭt) Pronunciation Key
Adjective
Relating to electromagnetic radiation having frequencies higher than those of visible light but lower than those of x-rays, approximately 1015-1016 hertz. Some animals, such as bees, are capable of seeing ultraviolet radiation invisible to the human eye. See more at electromagnetic spectrum.
Noun
Ultraviolet light or the ultraviolet part of the spectrum. See Note at infrared.
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The American Heritage® Science Dictionary
Copyright © 2002 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Copyright © 2002 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
American Heritage Stedman's Medical Dictionary - Cite This Source - Share This
ultraviolet ul·tra·vi·o·let (ŭl'trə-vī'ə-lĭt)
adj.
Abbr. UV, U.V.
Of or relating to the range of invisible radiation wavelengths from about 4 nanometers, on the border of the x-ray region, to about 380 nanometers, just beyond the violet in the visible spectrum. n.
Ultraviolet light or the ultraviolet part of the spectrum.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Webster's Revised Unabridged Dictionary - Cite This Source - Share This
Ultraviolet
Ul`tra*vi"o*let\, a. [Pref. ultra- + violet.] (Physics) Lying outside the visible spectrum at its violet end; -- said of rays more refrangible than the extreme violet rays of the spectrum.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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