| LR | Light Perception |
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| L/R | Light Reflex |
| BL | Barre-Lieou [syndrome]; basal lamina; baseline; Bessey-Lowry [unit]; black light; bladder; bleeding;... |
| BLB | Baker-Lima-Baker [mask]; Bessey-Lowry-Brock [method or unit]; black light bulb; Boothby-Lovelace-Bul... |
| DLE | delayed light emission; dialyzable leukocyte extract; discoid lupus erythematosus; disseminated lupu... |
| light-o'-love | 1. An old tune of a dance, the name of which made it a proverbial expression of levity, especially in love matters. "Best sing it to the tune of light-o'-love." 2. Hence: A light or wanton woman. Source: Websters Dictionary (01 Mar 1998) |
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| light-repressible receptor protein kinase | <enzyme> Photo-regulated protein isolated from arabidopsis thaliana; genbank x97774 Registry number: EC 2.7.1.- Synonym: lrrpk gene product (26 Jun 1999) |
| light-water reactor | <radiobiology> Class of fission reactors using ordinary light water as a coolant, rather than liquid metal or heavy water (water with deuterium instead of hydrogen). (09 Oct 1997) |
| lightening | Sensation of decreased abdominal distention during the later weeks of pregnancy following the descent of the foetal head into the pelvic inlet. (05 Mar 2000) |
| lighthouse lens | <physics> A lens built up, progressively, in zones or steps, each zone with its own individual radius. Considerable spherical correction is attained, and the weight of the lens is greatly reduced. Fresnel lenses were originally designed for lighthouses but they are now attainable for small spotlights, automobile headlights, and similar uses. (05 Aug 1998) |
| lighting | <chemistry> A name sometimes applied to the process of annealing metals. Source: Websters Dictionary (01 Mar 1998) |
| lightning | 1. A discharge of atmospheric electricity, accompanied by a vivid flash of light, commonly from one cloud to another, sometimes from a cloud to the earth. The sound produced by the electricity in passing rapidly through the atmosphere constitutes thunder. 2. The act of making bright, or the state of being made bright; enlightenment; brightening, as of the mental powers. Ball lightning, a rare form of lightning sometimes seen as a globe of fire moving from the clouds to the earth. Chain lightning, lightning in angular, zigzag, or forked flashes. Heat lightning, more or less vivid and extensive flashes of electric light, without thunder, seen near the horizon, especially. at the close of a hot day. Lightning arrester, a luminous beetle. See Firefly. Lightning conductor, a lightning rod. Lightning glance, a quick, penetrating glance of a brilliant eye. Lightning rod, a metallic rod set up on a building, or on the mast of a vessel, and connected with the earth or water below, for the purpose of protecting the building or vessel from lightning. Sheet lightning, a diffused glow of electric light flashing out from the clouds, and illumining their outlines. The appearance is sometimes due to the reflection of light from distant flashes of lightning by the nearer clouds. Origin: For lightening, fr. Lighten to flash. Source: Websters Dictionary (01 Mar 1998) |
| lightning injuries | Accidental injuries caused by brief high-voltage electrical discharges during thunderstorms. Cardiopulmonary arrest, coma and other neurologic symptoms, myocardial necrosis, and dermal burns are common. Prompt treatment of the acute sequelae, including cardiopulmonary resuscitation, is indicated for survival. (12 Dec 1998) |
| lightning strip | A strip of metal with abrasive on one side, used to open rough or improper contacts of proximal restorations. (05 Mar 2000) |
| lightwood | Pine wood abounding in pitch, used for torches in the Southern United States; pine knots, dry sticks, and the like, for kindling a fire quickly or making a blaze. Source: Websters Dictionary (01 Mar 1998) |
| ophthalmoscopy with reflected light | Examination of that part of the fundus adjacent to an area illuminated by a sharply focused light. (05 Mar 2000) |
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| tapetal light reflex | The glow from the eyes of some animals in the dark when a light illuminates the retina; due to the reflection of the light from the tapetum, an iridescent layer (containing guanidine crystals) in the choroid. (05 Mar 2000) |
| EDTA light chain | <protein> Myosin light chains (18 kD) from scallop muscle (two per pair of heavy chains), easily extracted by calcium chelation. Although the EDTA light chains do not bind calcium they confer calcium sensitivity on the myosin heavy chains. (18 Nov 1997) |
| transmitted light | <microscopy> The usual method for illuminating transparent microscopic specimens. The light is concentrated on the specimen by the substage condenser. Objects appear in outline (refraction images) or coloured on a bright field (colour images). (05 Aug 1998) |
| unit of light | See: candela, lux. (05 Mar 2000) |
| unpolarized light | <microscopy> A bundle of light rays having a common propagation direction but different vibration directions. (05 Aug 1998) |
| usable light range | <microscopy> The ratio of the maximum to the minimum levels of illuminance over which a video camera or camera tube can provide a usable signal. Being aided by automatic irises, gray-wedge wheels, etc., in addition to varying electrode voltages where permissible, the usable light range can be several orders of magnitude greater than the intrascene dynamic range. See: intrascene dynamic range, condenser, variable-focus. (05 Aug 1998) |
| flux, light | <microscopy> Sometimes called luminous flux, the visible portion of the radiant energy emitted by a light source. It is measured in lumens per solid angle. In electrical engineering, it is analogous to the lines of force in a magnetic field, spoken of as magnetic flux. (05 Aug 1998) |
| light adaptation |
adaptation of the eye to vision in the sunlight or in bright illumination (photopia), with reduction in the concentration of the photosensitive pigments of the eye; called also photopic a.
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| light reflex |
1. cone of light. 2. a circular spot of light seen reflected from the retina with the retinoscopic mirror. 3. pupillary r. (def. 1).
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| light sense |
the faculty by which different degrees of brilliancy are distinguished.
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| light chain |
any of the smaller polypeptide chains of antibody molecules, two identical light chains occurring (with two identical heavy chains) in each immunoglobulin monomer. There are two types, designated k and l, both occurring in all immunoglobulin classes (in a ratio of about two k chains to one l chain in humans). Light chains have two homology regions of about 110 amino acid residues: one variable region (V L ) and one constant region (C L ). Called also L c. See immunoglobulin.
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| light |
Light is electromagnetic radiation with a wavelength that is visible to the eye, or in a more general sense, any electromagnetic radiation in the range from infrared to ultraviolet. ...
Ãâó: en.wikipedia.org/wiki/Light
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| light | (of sleep) easily disturbed |
|---|---|
| light | demanding little effort |
| light | having relatively few calories |
| light | easily assimilated in the alimentary canal |
| light | of comparatively little physical weight or density |
| light | designed for ease of movement or to carry little weight |
| light | psychologically light |
| light | not great in degree or quantity or number |
| light | (physics, chemistry) not having atomic weight greater than average |
| light | of little intensity or power or force |
| light | moving easily and quickly |
| light | of the military or industry |
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