(n.) That agent, force, or action in nature by the operation of which upon the organs of sight, objects are rendered visible or luminous.
(n.) That which furnishes, or is a source of, light, as the sun, a star, a candle, a lighthouse, etc.
(n.) The time during which the light of the sun is visible; day; especially, the dawn of day.
(n.) The brightness of the eye or eyes.
(n.) The medium through which light is admitted, as a window, or window pane; a skylight; in architecture, one of the compartments of a window made by a mullion or mullions.
(n.) Life; existence.
(n.) Open view; a visible state or condition; public observation; publicity.
(n.) The power of perception by vision.
(n.) That which illumines or makes clear to the mind; mental or spiritual illumination; enlightenment; knowledge; information.
(n.) Prosperity; happiness; joy; felicity.
(n.) The manner in which the light strikes upon a picture; that part of a picture which represents those objects upon which the light is supposed to fall; the more illuminated part of a landscape or other scene; -- opposed to shade. Cf. Chiaroscuro.
(n.) Appearance due to the particular facts and circumstances presented to view; point of view; as, to state things fairly and put them in the right light.
(n.) One who is conspicuous or noteworthy; a model or example; as, the lights of the age or of antiquity.
(n.) A firework made by filling a case with a substance which burns brilliantly with a white or colored flame; as, a Bengal light.
(superl) Having light; not dark or obscure; bright; clear; as, the apartment is light.
(superl) White or whitish; not intense or very marked; not of a deep shade; moderately colored; as, a light color; a light brown; a light complexion.
(n.) To set fire to; to cause to burn; to set burning; to ignite; to kindle; as, to light a candle or lamp; to light the gas; -- sometimes with up.
(n.) To give light to; to illuminate; to fill with light; to spread over with light; -- often with up.
(n.) To attend or conduct with a light; to show the way to by means of a light.
(v. i.) To become ignited; to take fire; as, the match will not light.
(v. i.) To be illuminated; to receive light; to brighten; -- with up; as, the room lights up very well.
(superl.) Having little, or comparatively little, weight; not tending to the center of gravity with force; not heavy.
(superl.) Not burdensome; easy to be lifted, borne, or carried by physical strength; as, a light burden, or load.
(superl.) Easy to be endured or performed; not severe; not difficult; as, a light affliction or task.
(superl.) Easy to be digested; not oppressive to the stomach; as, light food; also, containing little nutriment.
(superl.) Not heavily armed; armed with light weapons; as, light troops; a troop of light horse.
(superl.) Not encumbered; unembarrassed; clear of impediments; hence, active; nimble; swift.
(superl.) Not heavily burdened; not deeply laden; not sufficiently ballasted; as, the ship returned light.
(superl.) Slight; not important; as, a light error.
(superl.) Well leavened; not heavy; as, light bread.
(superl.) Not copious or heavy; not dense; not inconsiderable; as, a light rain; a light snow; light vapors.
(superl.) Not strong or violent; moderate; as, a light wind.
(superl.) Not pressing heavily or hard upon; hence, having an easy, graceful manner; delicate; as, a light touch; a light style of execution.
(superl.) Easy to admit influence; inconsiderate; easily influenced by trifling considerations; unsteady; unsettled; volatile; as, a light, vain person; a light mind.
(superl.) Indulging in, or inclined to, levity; wanting dignity or solemnity; trifling; gay; frivolous; airy; unsubstantial.
(superl.) Not quite sound or normal; somewhat impaired or deranged; dizzy; giddy.
(superl.) Wanton; unchaste; as, a woman of light character.
(superl.) Not of the legal, standard, or usual weight; clipped; diminished; as, light coin.
(superl.) Loose; sandy; easily pulverized; as, a light soil.
(adv.) Lightly; cheaply.
(v. t.) To lighten; to ease of a burden; to take off.
(v. i.) To dismount; to descend, as from a horse or carriage; to alight; -- with from, off, on, upon, at, in.
(v. i.) To feel light; to be made happy.
(v. i.) To descend from flight, and rest, perch, or settle, as a bird or insect.
(v. i.) To come down suddenly and forcibly; to fall; -- with on or upon.
(v. i.) To come by chance; to happen; -- with on or upon; formerly with into.
Example Sentences:
(1) On Friday night, in a stadium built in an area once deemed an urban wasteland, the flame that has journeyed from Athens to every corner of these islands will light the fire that launches the London Olympics of 2012.
(2) Apparently, the irradiation with visible light of a low intensity creates an additional proton gradient and thus stimulates a new replication and division cycle in the population of cells whose membranes do not have delta pH necessary for the initiation of these processes.
(3) Morphological alterations in the lungs of pheasants after prolonged high-dosage administration of bleomycin sulfate were studied by light and electron microscopy.
(4) Light microscopic studies of pancreata from mice sacrificed at this time demonstrated insulitis and beta cell necrosis.
(5) The dependence of fluorescence polarization of stained nerve fibres on the angle between the fibre axis and electrical vector of exciting light (azimuth characteristics) has been considered.
(6) A 66-year-old woman with acute idiopathic polyneuritis (Landry-Guillain-Barré [LGB] syndrome) had normal extraocular movements, but her pupils did not react to light or accommodation.
(7) We have examined overlapping octapeptides from the kappa IIIb light chain variable region and show that some framework peptides have the ability to bind aggregated IgG.
(8) This study examined both the effect of variations in optical fiber tip and in light wavelength on laser-induced hyperthermia in rat brain.
(9) The water is embossed with small waves and it has a chill glassiness which throws light back up at the sky.
(10) A new type of Escherichia coli mutant which shows increased sensitivity to methyl methane sulfonate but not to UV light or to gamma rays was isolated after mutagenesis with N-methyl-N'-nitro-N-nitrosoguanidine.
(11) Approximately 90% of the patients have a lambda light chain myeloma protein and almost all patients excrete Bence-Jones protein.
(12) Matthias Müller, VW’s chief executive, said: “In light of the wide range of challenges we are currently facing, we are satisfied overall with the start we have made to what will undoubtedly be a demanding fiscal year 2016.
(13) In addition, lightly immunostained cells were distinguished in the caudal portion of the hypothalamic arcuate nucleus, area of tuber cinereum, retrochiasmatic area, and rostral portion of the paraventricular thalamic nucleus after colchicine treatment.
(14) Photograph: Guardian The research also compiled data covered by a wider definition of tax haven, including onshore jurisdictions such as the US state of Delaware – accused by the Cayman islands of playing "faster and looser" even than offshore jurisdictions – and the Republic of Ireland, which has come under sustained pressure from other EU states to reform its own low-tax, light-tough, regulatory environment.
(15) Using an in vitro culture system, light scatter analyses, and two-color flow cytometry, we provide evidence that the interleukin-2 (IL-2) and transferrin receptors can be induced within 48 hr on nonproliferating immature thymocytes.
(16) Photoreactions induced in that proper sensitizer molecules absorb UV-light or visible light.
(17) Urine specimens from patient REE also contained a light chain fragment that lacked the first (amino-terminal) 85 residues of the native light chain but otherwise was identical in sequence to the light chain REE.
(18) Three coyotes were operantly conditioned to depress one of two foot treadles, left or right, depending on the condition of the stimulus light.
(19) These results are discussed in the light of the mode of action of the substances used.
(20) The birds were maintained at a constant temperature in, dim green light.
Photometry
Definition:
(n.) That branch of science which treats of the measurement of the intensity of light.
Example Sentences:
(1) We studied the formation and structure of liquid crystalline phase of F-actin solutions by polarized light photometry, assuming that a small domain of the liquid crystalline phase works as a linear retardation plate.
(2) The nuclear DNA contents of 50 thyroid tumors were measured paraffin block samples and needle biopsies by using microscopic photometry, and the diagnostic value of this measurement was examined.
(3) Renal blood flow was measured by an electromagnetic flowmeter, glomerular filtration rate by creatinine clearance, urinary sodium by flame photometry and solute excretion by osmometry.
(4) Spectral luminous efficiency functions for mesopic vision were measured extensively to establish a basic data set for the mesopic photometry system.
(5) Various functional states of cells of sarcoma 45 in the course of its growth and regression were studied by photometry and spectral analysis using acridine orange.
(6) The effect of polyoxin D on Candida was evaluated in in vitro assays for its capacity to adhere to buccal epithelial cells (BEC), and by fluorescent-microscopy photometry and flow cytometry using cells stained with cellufluor (CF), a fluorochrome with affinity for chitin.
(7) The measurements in whole blood and plasma from intensive care patients were compared with flame photometry.
(8) SP-like immunoreactivity (SPLI) in the dorsal horns was quantitated using immunohistochemical staining and manual photometry.
(9) Concentrations were obtained per kilogram of dry mass, were converted to concentrations per litre of water content using known figures for water and solid concentration of nucleus and cytoplasm, and were then compared with measurements on cells from the same animal obtained by flame photometry.
(10) It is based on the microscopic photometry of stain intensities per area of functional units.
(11) The effect of Na and K ions on active Na transport was studied in guinea-pig auricles by means of flame photometry.
(12) Radiography and flame photometry have been compared as means of determining the end point of decalcification in relation to minimizing pulp-dentin separation in histological sections of teeth.
(13) The process of electrophoresis, a separation phenomenon, is mistakenly understood to include the sequential processes ancillary to analyte resolution, that is, staining and quantification, where the latter could be elution followed by photometry or integrating-calculating-densitometry.
(14) We conclude that the phasic, magnocellular cell system of the primate visual pathway underlies performance in the psychophysical task of heterochromatic flicker photometry.
(15) IV as a group were estimated by photometry of hydrolysed samples, using I as a reference.
(16) The contractile activity of the wall and valve of lymphatic microvessels (LM) of the rat mesentery were studied biomicroscopically by optic photometry.
(17) Intra-erythrocytic sodium was studied using hypotonic lysis and flame photometry after four washings with isotonic MgCl2 in 240 normotensive subjects (aged 10-45 years) on a free diet with (F+, 121 patients) or without (F-, 119 patients) hypertensive parents, recruited from a random sample of the general population.
(18) The precision levels of available alternatives for electrolyte analysis namely: flame photometry, direct and indirect ion selective electrode methods, dry chemistry, and the newly developed enzymatic approach for sodium and potassium analysis are discussed.
(19) The T3 response of other cardiac mRNAs was quantitated using in vitro translation, separation of 35S methionine labeled translational products and their quantitation by digital matrix photometry.
(20) Here we consider cancelling opposed movements for photometry with coloured lights, and some recent experiments, carried out with John Harris, on nulling 'real' against opposed 'apparent' motion for teasing out some neural movement channels.