What's the difference between blue and dark?

Blue


Definition:

  • (superl.) Having the color of the clear sky, or a hue resembling it, whether lighter or darker; as, the deep, blue sea; as blue as a sapphire; blue violets.
  • (superl.) Pale, without redness or glare, -- said of a flame; hence, of the color of burning brimstone, betokening the presence of ghosts or devils; as, the candle burns blue; the air was blue with oaths.
  • (superl.) Low in spirits; melancholy; as, to feel blue.
  • (superl.) Suited to produce low spirits; gloomy in prospect; as, thongs looked blue.
  • (superl.) Severe or over strict in morals; gloom; as, blue and sour religionists; suiting one who is over strict in morals; inculcating an impracticable, severe, or gloomy mortality; as, blue laws.
  • (superl.) Literary; -- applied to women; -- an abbreviation of bluestocking.
  • (n.) One of the seven colors into which the rays of light divide themselves, when refracted through a glass prism; the color of the clear sky, or a color resembling that, whether lighter or darker; a pigment having such color. Sometimes, poetically, the sky.
  • (n.) A pedantic woman; a bluestocking.
  • (pl.) Low spirits; a fit of despondency; melancholy.
  • (v. t.) To make blue; to dye of a blue color; to make blue by heating, as metals, etc.

Example Sentences:

  • (1) Within the outflow tract wall, the labelled cells were enmeshed by strands of alcian blue-stained extracellular matrix.
  • (2) The most successful dyes were phenocyanin TC, gallein, fluorone black, alizarin cyanin BB and alizarin blue S. Celestin blue B with an iron mordant is quite successful if properly handled to prevent gelling of solutions.
  • (3) It contains 10,000 apartments so far, in blocks that might appear Soviet but for shades of blue, green and yellow.
  • (4) Of all materials evaluated, Xantopren Blue and Silene silicone impression materials provided the best results in vivo.
  • (5) Most notably, retroperitoneal lymph nodes in rabbits remained dark blue up to 28 days after hindlimb endolymphatic instillation of liposomal patent blue.
  • (6) To selectively stain polyanionic macromolecules of growth plate cartilage and to prevent artifacts induced by aqueous fixation, proximal tibial growth plates were excised from rats, slam-frozen, and freeze-substituted in 100% methanol containing the cationic dye Alcian blue.
  • (7) The behaviour of the enzyme from Candida utilis and from Baker's yeast on columns of these and of Blue Sepharose CL-6B was examined, together with the behaviour of the contaminating enzyme, ribulose 5-phosphate 3-epimerase (EC 5.1.3.1).
  • (8) After methylene blue, the gradient in resting potential across the circular layer was greatly reduced or abolished.
  • (9) Furthermore, Methylene Blue contamination of the standard stain increased the rate of error in image analysis of white blood cell nuclei due to variations of staining intensity.
  • (10) The purpose was to show whether or not the methylene-blue test can be postponed to the second day.
  • (11) It was like watching somebody pouring a blue liquid into a glass, it just began filling up.
  • (12) July 7, 2016 Verified account A blue tick that tells you the user is either an A-list celebrity, a respected authority on an important subject or a BuzzFeed employee.
  • (13) The amount of formazan obtained after incubating vital cells with Meldola Blue as electron carrier was greater than that obtained with Methylene Blue, menadione, 2,6-dichloroindophenol, 1-methoxyphenazine methosulphate or phenazine methosulphate.
  • (14) India will have three carriers and both China and India are building blue-water [ocean-going] navies.
  • (15) On dissected mucosa stained by the PAS-alcian blue whole-mount method the density and distribution of goblet cells in various parts of the middle ear was determined in 13 children, ranging in age from 9 days to 14 years.
  • (16) The results showed immunostaining to function equally well on frozen and routine sections, and to be superior to Alcian Blue and PAS with regard to morphological detail.
  • (17) The working women lost their elasticity more rapidly than the nuns, and the male blue collar workers lost their elasticity more rapidly than the male white collar workers.
  • (18) How often do we use the term depressed to mean disappointed, mildly bummed out or sort of blue?
  • (19) Microotoscopy showed a blue pulsating mass behind the tympanic membrane.
  • (20) One day, out of the blue, there's a knock on the door.

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.