(a.) Destitute of light, or incapable of reflecting it; of the color of soot or coal; of the darkest or a very dark color, the opposite of white; characterized by such a color; as, black cloth; black hair or eyes.
(a.) In a less literal sense: Enveloped or shrouded in darkness; very dark or gloomy; as, a black night; the heavens black with clouds.
(a.) Fig.: Dismal, gloomy, or forbidding, like darkness; destitute of moral light or goodness; atrociously wicked; cruel; mournful; calamitous; horrible.
(a.) Expressing menace, or discontent; threatening; sullen; foreboding; as, to regard one with black looks.
(adv.) Sullenly; threateningly; maliciously; so as to produce blackness.
(n.) That which is destitute of light or whiteness; the darkest color, or rather a destitution of all color; as, a cloth has a good black.
(n.) A black pigment or dye.
(n.) A negro; a person whose skin is of a black color, or shaded with black; esp. a member or descendant of certain African races.
(n.) A black garment or dress; as, she wears black
(n.) Mourning garments of a black color; funereal drapery.
(n.) The part of a thing which is distinguished from the rest by being black.
(n.) A stain; a spot; a smooch.
(a.) To make black; to blacken; to soil; to sully.
(a.) To make black and shining, as boots or a stove, by applying blacking and then polishing with a brush.
Example Sentences:
(1) To quantify the size of the lesion in mice, the area of the infarct on the brain surface was assessed planimetrically 48 h after MCA occlusion by transcardial perfusion of carbon black.
(2) For male schizophrenics, all symptom differences disappeared except one; blacks were more frequently asocial.
(3) 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.
(4) The correlates of three characteristics of familial networks (i.e., residential proximity, family affection, and family contact) were examined among a national sample of older Black Americans.
(5) Positivity was not correlated with current residence census tract socioeconomic indicators in black or white females.
(6) The high frequency of increased PCV number in San, S.A. Negroes and American Negroes is in keeping with the view that the Khoisan peoples (here represented by the San), the Southern African Negroes and the African ancestors of American Blacks sprang from a common proto-negriform stock.
(7) Fluttering in the background was a black flag adorned with white script, the “black flag of jihad”.
(8) It is 30 years since Paul Canoville became the first black footballer to play for Chelsea.
(9) If black people could only sort out these self-inflicted problems themselves, everything would be OK. After all, doesn't every business say it welcomes job applicants from all backgrounds?
(10) A case-control study of breast cancer among Black American women was conducted in seven hospitals in New York City from 1969 to 1975.
(11) Mike Enzi of Wyoming A senior senator from Wyoming, Enzi worked for the Department of Interior and the private Black Hills Corporation before being elected to Congress.
(12) The Black pregnant teen is a microcosm of the impact of society on the most vulnerable.
(13) The charges against Harrison were filed just after two white men were accused of fatally shooting three black people in Tulsa in what prosecutors said were racially motivated attacks.
(14) The relative effect of the intramammary infections and of different factors related to the cow (parity, stage of lactation, milk yield) on the individual cell counts, were studied for 30 months on the 62 black-and-white Holstein cows of an experimental herd.
(15) Instead, he handed over the opening to reporter Molly Line, who said, “Racial profiling is in the eye of the beholder,” before citing differing perceptions of the phenomenon between white and black people, which is like reading the headline “Rapist, Victim Differ on Consent”.
(16) These findings indicate an association between HLA-B7 and ankylosing spondylitis in American blacks and suggest that these patients who lack B27 but possess B7 represent a subgroup of patients with this disease.
(17) This is an edited extract from Across the Seas – Australia’s Response to Refugees: A History by Klaus Neumann, published by Black Inc. Books and on-sale now .
(18) Of particular note is the difference between Black American and Nigerian figures.
(19) They were like some great show, the gas squeezing up from the depths of the oil well to be consumed in flame against the intense black horizon, like some great dragon.
(20) Its abuse has become concentrated among post-high school age, black males in a limited number of cities, especially Washington, DC.
Pigment
Definition:
(n.) Any material from which a dye, a paint, or the like, may be prepared; particularly, the refined and purified coloring matter ready for mixing with an appropriate vehicle.
(n.) Any one of the colored substances found in animal and vegetable tissues and fluids, as bilirubin, urobilin, chlorophyll, etc.
(n.) Wine flavored with species and honey.
Example Sentences:
(1) The results also suggest that the dispersed condition of pigment in the melanophores represents the "resting state" of the melanophores when they are under no stimulation.
(2) Differences between the albino vs pigmented strains were observed following injections of saline.
(3) Two lectins, wheat germ agglutinin (WGA) and peanut agglutinin (PNA), were used to compare domains within the interphotoreceptor matrices (IPM) of the cat and monkey, two species where the morphological relationship between the retinal pigment epithelium (RPE) and photoreceptors is distinctly different.
(4) Uptake studies with 22Na were performed in cultured bovine pigmented ciliary epithelial cells, in order to characterize mechanisms of Na+ transport.
(5) CW Nd:YAG light transmitted by fiber optic cable and sapphire crystal was applied transsclerally to the ciliary body of pigmented and albino rabbits.
(6) The evolution and function of multiple forms of a given photosynthetic pigment in vivo are discussed.
(7) Changes in protein phosphorylation induced by phagocytic challenge were identified in cultured rat retinal pigment epithelium (RPE) following exposure to isolated rat rod outer segments (ROS) or to polystyrene latex microspheres (PSL).
(8) Both categories frequently showed pellagrous pigmentation and mucocutaneous signs of B-vitamin deficiency.
(9) We show that, in digitonin-permeabilized goldfish xanthophores, the pigment organelles can be induced to disperse by a combination of cAMP, ATP, and xanthophore cytosol.
(10) A red pigment produced by the actinomycete strain B 4358 was identified as butyl-meta-cycloheptylprodiginine (4) by 1H, 13C and correlation via long range coupling NMR spectra.
(11) Two unusual types of oral mucosal pigmentation are reported.
(12) These results are consistent with the idea that RPE pigment dispersion is triggered by a substance that diffuses from the retina at light onset.
(13) Rhabdomeres are substantially smaller and visual pigment is nearly eliminated when Drosophila are carotenoid-deprived from egg to adult.
(14) It is hypothesized that deposition of bilirubin in tissues takes place as an ongoing event, the deposited pigment being eliminated by bilirubin oxidase in healthy infants.
(15) The calculated separation between the centers of these two pigments (using an extended version of the exciton theory) is about 10 A, the pigments' molecular planes are tilted by about 20 degrees, and their N1-N3 axes are rotated by 150 degrees relative to each other.
(16) We have investigated enhancement of pigmentation in inbred C3H- mice using tail skin as a model for testing the effects of phosphorylated DOPA (DP) and ultraviolet radiation.
(17) Although mucocutaneous pigmentation was not present in two of the three patients, the features of intestinal polyposis are consistent with those of Peutz-Jeghers syndrome.
(18) Cytochromes b, c(555), possibly c(1), cytochrome oxidase, a carbon monoxide-binding pigment, and flavoproteins were detectable in the spectra of both intact cells and mitochondria.
(19) The addition of alcohol to the drinking-water resulted in the formation of stones rich in pigment.
(20) The total number of neuronal cell bodies was 25% lower in AIDS (P less than 0.01) than in 12 age-matched controls, although the volume density of neuronal melanin did not differ from that of controls because the percentage of pigmented cell bodies was higher (P less than 0.01) and the cell bodies were more fully packed with melanin in AIDS.