| ultrasonography |
Process by which the reflection of high-frequency sound waves is used to develop an image of a structure.
출처: sportsmedicine.about.com/library/glossary/blglossa...
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| ultrasound |
An electrical modality that transmits a sound wave through an applicator into the skin to the soft tissue in order to heat the local area for relaxing the injured tissue and/or disperse edema.
출처: sportsmedicine.about.com/library/glossary/blglossa...
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| ultrasonography |
UL-tra-son-OG-ra-fee A procedure in which high-energy sound waves (ultrasound) are bounced off internal tissues or organs and make echoes. The echo patterns are shown on the screen of an ultrasound machine, forming a picture of body tissues called a sonogram. Also called ultrasound.
출처: goldbamboo.com/glossary-1u.html
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| ultraviolet radiation |
Electromagnetic radiation at wavelengths between 10 and 400 nanometers lying just beyond the high-energy (violet) end of the visible-light band of the solar spectrum; about 5% of the radiation the Earth receives from the sun, much of which is absorbed by the atmosphere. UV-A = 315 to 400 nanometers wavelength; UV-B = 280 to 315 nanometers; UV-C = 100 to 280 nanometers. UV-B is the part of the spectrum that causes sunburn and has been linked to skin cancer.
출처: biology.usgs.gov/s+t/SNT/noframe/zy198.htm
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| ultrasonic |
A term referring to acoustic vibration frequencies greater than about 20,000 hertz.
출처: www.ndt-ed.org/GeneralResources/Glossary/letter/u....
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