| ultraviolet radiation |
The energy range just beyond the violet end of the visible spectrum. Although ultraviolet radiation constitutes only about 5 percent of the total energy emitted from the sun, it is the major energy source for the stratosphere and mesosphere, playing a dominant role in both energy balance and chemical composition.
출처: www.srh.weather.gov/srh/jetstream/append/glossary_...
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| ultraviolet |
Radiant energy immediately beyond the violet end of visible light.
출처: www12.mawebcenters.com/coltslaboratories/gloss.ivn...
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| ultraviolet radiation |
Electromagnetic radiation of shorter wavelength than visible radiation but longer than x-rays, between 0.02 and 0.4 micron (200 and 4000 angstrom).
출처: www.novalynx.com/glossary-u.html
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| ultrasonography |
test that uses sound waves and echoes to create an image of the inside of the body.
출처: www.umm.edu/gyn/glossary.htm
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| ultrasonic |
having to do with frequencies of sound above normal human hearing, generally accepted to be at 20KHz to 2MHZ and above, but also extended down to the 5KHz to 20KHz range in certain processing applications (cf subsonic, supersonic, or transsonic, which have to do with the speed of sound).
출처: home.att.net/~Berliner-Ultrasonics/us-gloss.html
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