| bright field illumination | <microscopy> The method of lighting the specimen with a solid cone of rays. Transmitted bright field illumination is performed by a substage condenser. Reflected bright field illumination is performed by a vertical illuminator. Compare: dark field illumination (05 Aug 1998) |
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| bright field imaging | <microscopy> An imaging mode in a transmission electron microscopy that uses only unscattered Electrons to form the image. Contrast in such an image is due entirely to mass-thickness variations in amorphous samples, and may include diffraction contrast in crystalline samples. (05 Aug 1998) |
| bright field microscopy | <technique> Optical microscopy, in which absorption to a great extent and diffraction to a minor extent give rise to the image, as opposed to phase contrast or interference methods of microscopy. (18 Nov 1997) |
| bright t1 lesion | <radiology> (short T1), fat (lipoma, dermoid), sub-acute haemorrhage (metHb), paramagnetic agent (Gd, ? posterior pituitary), proteinaceous fluid (colloid cyst) most abnormalities cause long T1 and T2 (dark/bright) see also: dark T2 lesion (12 Dec 1998) |
| bright's disease | <medicine> An affection of the kidneys, usually inflammatory in character, and distinguished by the occurrence of albumin and renal casts in the urine. Several varieties of Bright's disease are now recognised, differing in the part of the kidney involved, and in the intensity and course of the morbid process. Origin: From Dr. Bright of London, who first described it. Source: Websters Dictionary (01 Mar 1998) |
| Bright, Richard | <person> English internist and pathologist, 1789-1858. See: Bright's disease. (05 Mar 2000) |
| brighten | 1. To make bright or brighter; to make to shine; to increase the luster of; to give a brighter hue to. 2. To make illustrious, or more distinguished; to add luster or splendor to. "The present queen would brighten her character, if she would exert her authority to instill virtues into her people." (Swift) 3. To improve or relieve by dispelling gloom or removing that which obscures and darkens; to shed light upon; to make cheerful; as, to brighten one's prospects. "An ecstasy, which mothers only feel, Plays round my heart and brightens all my sorrow." (Philips) 4. To make acute or witty; to enliven. Origin: From Bright. Source: Websters Dictionary (01 Mar 1998) |
| brightness | <microscopy> The brightness of an extended luminous source is termed the intensity per unit area measured in candles per cm exp2. Also, the intensity of reflection, it may be measured in lamberts, one lambert equals 1 lumen/cm exp2. (05 Aug 1998) |
| brightness difference threshold | The smallest difference that can be perceived as a difference in brightness. Synonym: light difference. (05 Mar 2000) |
| brill | <marine biology> A fish allied to the turbot (Rhombus levis), much esteemed in England for food. Synonym: bret, pearl, prill. See Bret. Origin: Cf. Corn. Brilli mackerel, fr. Brith streaked, speckled. Source: Websters Dictionary (01 Mar 1998) |
| Brill's disease | Recrudescence of epidemic typhus years after the initial attack. The agent that causes epidemic typhus (Rickettsia prowazekii) remains viable for many years and then when host defenses are down, it is reactivated causing recurrent typhus. The disease is named for the physician Nathan Brill and the great bacteriologist Hans Zinsser. (12 Dec 1998) |
| Brill, Nathan | <person> U.S. Physician, 1860-1925. See: Brill's disease, Brill-Symmers disease, Brill-Zinsser disease. (05 Mar 2000) |
| Brill-Symmers disease | An obsolete term for nodular lymphoma. (05 Mar 2000) |
| brill-zinsser disease | Recrudescence of epidemic typhus years after the initial attack. The agent that causes epidemic typhus (Rickettsia prowazekii) remains viable for many years and then when host defenses are down, it is reactivated causing recurrent typhus. The disease is named for the physician Nathan Brill and the great bacteriologist Hans Zinsser. (12 Dec 1998) |
| brilliant green | The sulfate of di-(p-diethylamino)-triphenyl carbinolanhydride. An indicator dye that changes from yellow to green at pH 0.0 to 2.6; also used as a topical antiseptic and as a selective bacteriostatic agent in culture media. Synonym: ethyl green. (05 Mar 2000) |
| Brissaud's reflex |
contraction of the tensor muscle of fascia lata on tickling the sole.
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| Brill-Zinsser disease |
Epidemic typhus is a form of typhus caused by the bacillus Rickettsia prowazekii, carried by the human body louse Pediculus humanus. Feeding on a human who carries the bacillus infects the louse. R. prowazekii grows in the louse's gut and is excreted in the feces. The disease is transmitted to an uninfected human who scratches the bite and rubs the feces into the wound. Incubation period is one to two weeks. R. prowazekii can remain viable and virulent in the dried feces for many days. ...
출처: en.wikipedia.org/wiki/Brill-Zinsser_disease
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| British anti-lewisite |
British Anti Lewisite, often referred to by its acronym BAL, is a compound developed by the British biochemists of Oxford University during World War II . It was developed secretly as an antidote for Lewisite poisoning, which is a now-obsolete chemical warfare agent. It is also known by its structural name 2,3-dimercaptopropanol, as well as 1,2-dithioglycerol, mercaprol, dimercaprol, dicaptol, or sulfactin. It is a colorless, oily liquid. ...
출처: en.wikipedia.org/wiki/British_anti-Lewisite
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| bridge |
----A bridge is a device for supporting the strings on a stringed instrument and transmitting the vibration of those strings to some other structural component of the instrument that amplifies the sound. Most stringed instruments produce their sound through the application of energy to the string, which sets them into vibratory motion. The strings alone, however, produce only a faint sound because they displace only a small volume of air as they vibrate. ...
출처: en.wikipedia.org/wiki/Bridge_(stringed_instrument)
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| British thermal unit |
The British thermal unit (BTU or Btu) is a non-metric unit of energy, used in the United States and, to a lesser extent, the UK (where it isgenerally only used for heating systems). The SI unit is the joule (J), which is used by most other countries. ...
출처: en.wikipedia.org/wiki/British_thermal_unit
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| bri | blunt criticism |
|---|---|
| bri | a fragment of brick used as a weapon |
| bri | genus of herbs of southwestern America having usually creamy florets followed by one-seeded fruits in a prominent bristly sheath |
| bri | a place where bricks are made and sold |
| bri | a kiln for making bricks |
| bri | a craftsman skilled in building with bricks |
| bri | a hammer used in laying bricks |
| bri | the craft of laying bricks |
| bri | having little elasticity |
| bri | having little elasticity |
| bri | building material consisting of bricks laid with mortar between then |
| bri | masonry done with bricks and mortar |