| 영문 | ultrastructure | 한글 | 미세구조 |
|---|---|---|---|
| 설명 | 신체를 구성하고 있는 최소미세입자의 구조. 광학현미경의 해상력을 넘은 초현미경이나 전자현미경하에서 처음으로 보이는 구조. 원자가 아주 근접한 에너지수준을 가질 때, 이 수준의 그룹에 대응하여 원자의 스펙트럼선에 파장이 근접한 몇 개의 선이 한 무리가 되어 관찰되는 현상이다. |
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| 영문 | ultraviolet | 한글 | 자외선 |
|---|---|---|---|
| 설명 | 보라색보다 더욱 파장이 짧은 400nm 이하의 볼 수 없는 광선이며 다음의 3종으로 나눈다. ① 200~290nm(UVC): 저압램프에서 조사되는 것으로 DNA를 저해하며 피부에 조사되면 홍반이 생긴다. 대기중의 O3나 H2O에서 흡수된다. ② 290~320nm(UVB): 피부가 햇볕에 타서 검게 되며 지나치면 수포나 피부암을 일으킬 위험이 있다. ③ 320~400nm(UVA): 지표면에 많으며 무해하다. 다량이 폭로되면 피부에 색소침착을 일으킨다. |
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| 영문 | ultraviolet B | 한글 | 중간파장자외선 |
|---|---|---|---|
| 설명 | 290~320nm의 자외선. 일광화상과 그을림을 가장 효과적으로 유발한다. 백인에서 자외선 과다는 피부암을 유발할 수 있다. |
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| 영문 | ultraviolet C | 한글 | 짧은파장자외선 |
|---|---|---|---|
| 설명 | 200~290nm의 자외선 방사. UVC라고도 한다. 일광의 UVC는 지구 표면에 도달하지 않는다. 멸균/수은아크등은 일광화상과 각막염을 유발할 수 있다. |
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ultrared
| ultramicroscope | <instrument, microscopy> A term applied to particles less than 0.1 ~m in diameter, hence too small to be truly resolved by the light micro- scope. Under the ultramicroscope they look like stars in the sky. Their differences in size are merely indicated by differences in brightness. (05 Aug 1998) |
|---|---|
| ultramicroscopic | <optics> Particles which, although visible in the ultramicroscope, are too small to be resolved by visible light. This places their size between 0.2 Lm and 0.005 Lm. (05 Aug 1998) |
| ultramicrotome | A microtome used in cutting sections 0.1 um thick, or less, for electron microscopy. (05 Mar 2000) |
| ultramicrotomy | The cutting of ultrathin sections for electron microscopy by use of an ultramicrotome. (05 Mar 2000) |
| ultramontanism | The principles of those within the Roman Catholic Church who maintain extreme views favoring the pope's supremacy; so used by those living north of the Alps in reference to the Italians; rarely used in an opposite sense, as referring to the views of those living north of the Alps and opposed to the papal claims. Cf. Gallicanism. Origin: Cf. F. Ultramontanisme. Source: Websters Dictionary (01 Mar 1998) |
| ultrared | <physics> Situated beyond or below the red rays; as, the ultrated rays of the spectrum, which are less refrangible than the red. Origin: Pref. Ultra- + red. Source: Websters Dictionary (01 Mar 1998) |
| ultrashortwave diathermy | Shortwave diathermy in which the wavelength is under 10 meters. (05 Mar 2000) |
| ultrasonic | Relating to energy waves similar to those of sound but of higher frequencies (above 30,000 Hz). Origin: ultra-+ L. Sonus, sound (05 Mar 2000) |
| ultrasonic cardiography | Echocardiography is a diagnostic test which uses ultrasound waves to make images of the heart chambers, valves and surrounding structures. It can measure cardiac output and is a sensitive test for inflammation around the heart (pericarditis). It can also be used to detect abnormal anatomy or infections of the heart valves. (12 Dec 1998) |
| ultrasonic cephalometry | Measurement of the foetal head by ultrasound. (05 Mar 2000) |
| ultrasonic egg recovery | Obtaining an egg for in vitro fertilization by means of an ultrasonically guided needle aspiration of ovarian follicles; may be performed transvesically or via the cul-de-sac. (05 Mar 2000) |
| ultrasonic lithotresis | The demolition of calculi by high frequency sound waves. (05 Mar 2000) |
| ultrasonic microscope | <instrument> A microscope that has lenses designed to use acoustic energy so that the ultrasonic wavelengths may be utilised; by means of transducers, the information is translated to a form that may be visualised or recorded. (05 Mar 2000) |
| ultrasonic nebuliser | A humidifier using high-frequency electricity to power a transducer that vibrates 1,350,000 times per second and changes water up into particles 0.5 to 3 um in size in its nebulizing chamber; used in inhalation therapy. (05 Mar 2000) |
| ultrasonic rays | See: ultrasonic. (05 Mar 2000) |
Synonyms :
Synonyms : Color Doppler Ultrasonography, Color Ultrasonography, Doppler, Doppler Color Ultrasonography, Ultrasonography, Doppler Color
Synonyms : Doppler Duplex Ultrasonography, Duplex Doppler Ultrasonography, Duplex Ultrasonography, Doppler, Ultrasonography, Doppler Duplex
Synonyms : Doppler Pulsed Ultrasonography, Pulsed Doppler Ultrasonography, Pulsed Ultrasonography, Doppler, Ultrasonography, Doppler Pulsed
Synonyms : Sonography, Doppler Transcranial, Transcranial Doppler Sonography, Transcranial Doppler Ultrasonography, Transcranial Sonography, Doppler, Transcranial Ultrasonography, Doppler, Ultrasonography, Doppler Transcranial
| ultrasonic |
supersonic: having frequencies above those of audible sound
출처: wordnet.princeton.edu/perl/webwn
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|---|---|
| ultrasonography |
sonography: using the reflections of high-frequency sound waves to construct an image of a body organ (a sonogram); commonly used to observe fetal growth or study bodily organs
출처: wordnet.princeton.edu/perl/webwn
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| ultrasound |
very high frequency sound; used in ultrasonography sonography: using the reflections of high-frequency sound waves to construct an image of a body organ (a sonogram); commonly used to observe fetal growth or study bodily organs
출처: wordnet.princeton.edu/perl/webwn
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| ultraviolet |
radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays
출처: wordnet.princeton.edu/perl/webwn
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| ultraviolet lamp |
any source of illumination that emits ultraviolet radiation
출처: wordnet.princeton.edu/perl/webwn
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| ultra | of a brilliant pure blue to purplish blue color |
|---|---|
| ultra | blue pigment made of powdered lapis lazuli |
| ultra | light microscope that uses scattered light to show particles too small to see with ordinary microscopes |
| ultra | too small to be seen without an ultramicroscope |
| ultra | extremely modern |
| ultra | on the Italian or Roman side of the Alps |
| ultra | on or relating to or characteristic of the region or peoples beyond the Alps from Italy (or north of the Alps) |
| ultra | fanatical patriotism |
| ultra | fanatically patriotic |
| ultra | having frequencies above those of audible sound |
| ultra | by ultrasonic means |
| ultra | using the reflections of high-frequency sound waves to construct an image of a body organ (a sonogram) |