(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.
Covellite
Definition:
(n.) A native sulphide of copper, occuring in masses of a dark blue color; -- hence called indigo copper.
Example Sentences:
(1) Optimum conditions for the oxidation of chalcocite were: pH, 1.7 to 2.3; temperature, 35 C; and ferric iron concentration in the range of 0.004 to 0.01 M. For covellite, the optimum conditions were: pH 2.3; temperature, 35 C; and ferric iron concentration in the range of 0.004 to 0.02 M. The energies of activation were determined to be 16.3 kcal (ca.
(2) Biodegradation of chalcocite was found to be 90 to 100% and that of covellite 45 to 60%.
(3) "Oxygraph" apparatus was used to measure quantitatively the kinetics of oxidation of synthetic covellite (CuS) in the presence and absence of Thiobacillus species.
(4) In contrast, all Cu X-ray photoelectron signals of the more tentatively described mixed valence complexes Na2Cu3S3 and the mineral covellite, CuI4CuII2(S2)2S2, could be attributed exclusively to Cu(I).
(5) 4.8 X 10(4) J) per mol for chalcocite and covellite, respectively.
(6) The microbiological oxidation of synthetic chalcocite and covellite has been investigated using an adapted strain of Thiobacillus ferrooxidans.