What's the difference between bright and dark?

Bright


Definition:

  • (v. i.) See Brite, v. i.
  • (a.) Radiating or reflecting light; shedding or having much light; shining; luminous; not dark.
  • (a.) Transmitting light; clear; transparent.
  • (a.) Having qualities that render conspicuous or attractive, or that affect the mind as light does the eye; resplendent with charms; as, bright beauty.
  • (a.) Having a clear, quick intellect; intelligent.
  • (a.) Sparkling with wit; lively; vivacious; shedding cheerfulness and joy around; cheerful; cheery.
  • (a.) Illustrious; glorious.
  • (a.) Manifest to the mind, as light is to the eyes; clear; evident; plain.
  • (a.) Of brilliant color; of lively hue or appearance.
  • (n.) Splendor; brightness.
  • (adv.) Brightly.
  • (v. t.) To be or become overripe, as wheat, barley, or hops.

Example Sentences:

  • (1) It is concluded that in the mouse model the ability of buspirone to reduce the aversive response to a brightly illuminated area may reflect an anxiolytic action, that the dorsal raphe nucleus may be an important locus of action, and that the effects of buspirone may reflect an interaction at 5-hydroxytryptamine receptors.
  • (2) They retained the ability to make this discrimination when the coloured stimuli were placed against a background bright enough to saturate the rods.3.
  • (3) There was good agreement between the survival of normally oxygenated cells in culture and bright cells from tumors and between hypoxic cells in culture and dim cells from tumors over a radiation dosage range of 2-5 Gray.
  • (4) Vital staining of neuroblastoma cells with acridine orange produces a bright intracellular red-orange fluorescence most probably due to the occurrence of RNA.
  • (5) Thereafter, donor type cells expressed an intermediate Thy 1.2 brightness; this population then persisted and surpassed the other subsets.
  • (6) It’s a bright, simple space with wooden tables and high stalls and offers tastings and beer-making workshops.
  • (7) The brightly lit ice palaces themselves are stunning, inside and out, and the sporting facilities have been rightly praised by almost all the athletes.
  • (8) The bright lines in the difference image represent the paths along which the filaments have moved and are measured using a crosshair cursor controlled by the mouse.
  • (9) Rats exposed to the bright-light condition suffered a pronounced loss of photoreceptor cells by 10 weeks, and an even greater cell loss by 17 weeks.
  • (10) Even Paul Bright had to get a private charity to fund half his work.
  • (11) There was a uniform decrease in brightness discrimination to either side of the foveal peak.
  • (12) Bright artificial light has been found effective in reducing winter depressive symptoms of Seasonal Affective Disorder, although conclusions about the true magnitude of treatment effect and importance of time of day of light exposure have been limited by methodologic problems.
  • (13) The frequencies of the various anaphase patterns of bright and dim centromere regions were binomially distributed, indicating random distribution of chromatids with respect to the age of their DNA templates.
  • (14) (2) Sequences of brightness steps of like polarity (either increments or decrements) elicit positive and negative motion-dependent response components when mimicking motion in the cell's preferred and null direction, respectively.
  • (15) "Most technologies have their bright and dark side," he replies, buoyantly.
  • (16) Ultrastructural cytochemistry with XRMA is limited by the need to use high-brightness electron sources.
  • (17) Kobani impressed on the Kurds that Erdoğan could not be trusted and that anti-Kurdish feeling continued to burn brightly in the Turkish state.
  • (18) The administration of the drug in Stage 1 improved the acquisition of the initial brightness discrimination and facilitated reversal learning independently of the drug administered in Stage 2.
  • (19) The highest expression was noted in a recurrent plexiform ameloblastoma in which almost 100% of the tumor cells were brightly reactive.
  • (20) Mercaptoacetate, injected in the middle of the bright phase, reduced the latency to eat but did not affect the duration of the subsequent IMI or cumulative food intake in LF rats.

Dark


Definition:

  • (a.) Destitute, or partially destitute, of light; not receiving, reflecting, or radiating light; wholly or partially black, or of some deep shade of color; not light-colored; as, a dark room; a dark day; dark cloth; dark paint; a dark complexion.
  • (a.) Not clear to the understanding; not easily seen through; obscure; mysterious; hidden.
  • (a.) Destitute of knowledge and culture; in moral or intellectual darkness; unrefined; ignorant.
  • (a.) Evincing black or foul traits of character; vile; wicked; atrocious; as, a dark villain; a dark deed.
  • (a.) Foreboding evil; gloomy; jealous; suspicious.
  • (a.) Deprived of sight; blind.
  • (n.) Absence of light; darkness; obscurity; a place where there is little or no light.
  • (n.) The condition of ignorance; gloom; secrecy.
  • (n.) A dark shade or dark passage in a painting, engraving, or the like; as, the light and darks are well contrasted.
  • (v. t.) To darken to obscure.

Example Sentences:

  • (1) And that, as much as the “on water, operational” considerations, is why we are being kept in the dark.
  • (2) The first group was reared in complete darkness while the second one was subjected to permanent noise.
  • (3) In the dark the 6-azidoflavoproteins are quite stable, except for L-lactate oxidase, where spontaneous conversion to the 6-amino-FMN enzyme occurs slowly at pH 7.
  • (4) Most notably, retroperitoneal lymph nodes in rabbits remained dark blue up to 28 days after hindlimb endolymphatic instillation of liposomal patent blue.
  • (5) In the dark cortical zone of the nodes (III group) there occur tissue basophils (mast cells), that, together with increasing number of acidophilic granulocytes and appearance of neutrophilic cells, demonstrates that there is an inflammatory reaction in the organ studied as a response to the lymphocytic suspension injected.
  • (6) Urinalysis revealed a low pH, increased ketones and bilirubin excretion, dark yellowish change in color, the appearance of "leaflet-shaped" crystals and increased red blood cells and epithelial cells in the urinary sediment, increased water intake, decreased specific gravity and decreased sodium, potassium and chloride in the urine.
  • (7) We were searching for spontaneous and positional nystagmus in 5 positions with open eyes in darkness and with closed eyes.
  • (8) Previous FTIR measurements have identified several tyrosine residues that change their absorption characteristics between light-adapted BR and dark-adapted BR, or between intermediates K and M [Dollinger, G., Eisenstein, L., Lin, S.-L., Nakanishi, K., Odashima, K., & Termini, J.
  • (9) Steady state levels of chloroplast mRNA encoding the core PSII polypeptides remain nearly constant in the light or the dark and are not affected by the developmental stage of the plastid.
  • (10) The second triplet, which was stable in the dark at 4.2 K following illumination, was assigned to the radical pair Donor+I-.
  • (11) The results indicate that CRALBP X 11-cis-retinol is sufficiently stereoselective in its binding properties to warrant consideration as a component of the mechanism for the generation of 11-cis-retinaldehyde in the dark.
  • (12) Although the Ca2+-independent mechanism accounts for about two thirds of the total acetylcholine release in the dark, the amount of acetylcholine released in this way is small compared with the release of acetylcholine triggered by stimulation of the retina with light.
  • (13) The extracellular concentration of GABA is probably high in prolonged darkness, and it is low after prolonged light exposure.
  • (14) In lettuce, the presence of 2,4-D in the light lowered the concentration of total Hg (or MeHg) required to reduce growth by 50%, about 13 times relative to that in the dark (i.e., it sensitized the cells).
  • (15) This suggests that many retinal ganglion cells continue to discharge in total darkness for long periods.
  • (16) In darkness, raising the concentration of K in the fluid of perfusion gives an increase of the efflux of (86)Rb and increasing the extracellular concentration of Ca yields a retention.
  • (17) Upon illumination, a dark-adapted photosynthetic sample shows time-dependent changes in chlorophyll (Chl) a fluorescence yield, known as the Kautsky phenomenon or the OIDPS transient.
  • (18) One elderly woman was left alone in the dark for hours unable to find food or drink.
  • (19) These observations indicated a novel mechanism that in the absence of light-dark schedule, mothers taught the circadian rhythm to the pups as they raised them.
  • (20) It was observed that the circadian rhythm was disrupted by injections of lithium at the beginning of the light as well as the dark phase of the LD cycle.