(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.
(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.
Gloom
Definition:
(n.) Partial or total darkness; thick shade; obscurity; as, the gloom of a forest, or of midnight.
(n.) A shady, gloomy, or dark place or grove.
(n.) Cloudiness or heaviness of mind; melancholy; aspect of sorrow; low spirits; dullness.
(n.) In gunpowder manufacture, the drying oven.
(v. i.) To shine or appear obscurely or imperfectly; to glimmer.
(v. i.) To become dark or dim; to be or appear dismal, gloomy, or sad; to come to the evening twilight.
(v. t.) To render gloomy or dark; to obscure; to darken.
(v. t.) To fill with gloom; to make sad, dismal, or sullen.
Example Sentences:
(1) Byatt said that, while she had not wished to present an allegory or a polemic, the story was impelled by a profound sense of gloom about the environment and indeed about all human endeavours.
(2) Thus, knowledge of HIV antibody status appears to dispel a sense of gloom in persons who incorrectly believe themselves to be infected with HIV, but does not appear to induce significant distress in those whose expectation of a positive result is confirmed.
(3) The Nuit debout has some aspects of a May 68 for the internet age, but with a major difference: the revolutionary students of half a century ago came of age during the trente glorieuses , the 30 glorious years of postwar economic growth, and wanted to crack open a conservative society; those of 2016 are, on the contrary, the children of 30 years of high unemployment, economic gloom and disenchantment with the way representative democracy works.
(4) In Dublin, the general mood was summed up by the Evening Herald headline, referring to a slogan from an car advert featuring Henry: "It's Va Va Gloom".
(5) 9pm BST: In fresh gloom on Wall Street, the Dow sheds 449 points to close at 10,609.
(6) In a day of unremitting gloom, and yet more market turbulence, the Greek government also stood on the precipice of collapse, risking an uncontrolled default, as the government of George Papandreou faced a late-night confidence vote in parliament.
(7) Gianni Infantino’s victory offers Fifa a glimmer of hope amid the gloom Read more David Gill, the FA director who also sits on the executive committee at both Uefa and Fifa, said Infantino’s election was “a good day for football”, while the American Fifa executive committee member Sunil Gulati also hailed it as “a good day for the sport”.
(8) The charge merely adds to the gloom engulfing Mourinho as he contemplates the ramifications of his side’s fifth defeat in 10 Premier League games.
(9) She lurches up from the corner with cheerful gloom.
(10) Chelsea v Bournemouth: Premier League – as it happened Read more Mourinho’s post-match gloom reflected as much, his criticisms of the officials all rather half-hearted given the fact that, when he has lambasted perceived mistakes this term, he has been slapped down with heavy fines, a stadium ban and a threat of another to come.
(11) The speech will be “very different than some of the doom and gloom we hear from some of the Republican candidates out there”, he told ABC.
(12) Although I've learned to appreciate the grim beauty of murkiness, the washrag skies and mud so jealous it clings to every step, this emerald vision in the monochrome gloom is startling.
(13) I like the challenges that come with those that thrive in such adverse conditions, and there are plenty: woodland species that make the most of what little sunlight hits the leaf litter; ferns that like dripping cave mouths and cliff faces cast in gloom; and small shrubs that eke out a living under bigger things, such as butcher’s broom ( Ruscus aculeatus ) and fragrant sweet box ( sarcoccoca ).
(14) Carpetright also added to the gloom, axing this year's dividend and warning that it sees "no respite" from the challenges that have forced several high street names into administration in recent weeks.
(15) The gloom was soon to build when five minutes after the interval Giggs won a corner with a sprightly run.
(16) The plea for government intervention comes as chancellor George Osborne continues to tour China, where figures showed local factory activity shrinking at its fastest pace in six and a half years in September, adding to a sense of gloom over the prospects for the world economy.
(17) When Barack Obama was elected US president in the depths of economic gloom, satirical news outlet the Onion carried the headline: "Black man given nation's worst job."
(18) The one message that is important for both patients and physicians is that the gloom and doom of the 1960s and 1970s can now be replaced by a spirit of optimism.
(19) As Europe scrambled to put together a coherent answer to the biggest challenge the union has faced, EU interior ministers meeting in Amsterdam on Monday compounded a sense of gloom and confusion in the face of ever rising numbers of people heading into Greece from Turkey.
(20) It fears that, set against the gloom of the past three years, the enthusiasm produced by even a low level of growth may be enough to keep the government, or at least the Conservatives , in power.