(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.
Sinister
Definition:
(a.) On the left hand, or the side of the left hand; left; -- opposed to dexter, or right.
(a.) Unlucky; inauspicious; disastrous; injurious; evil; -- the left being usually regarded as the unlucky side; as, sinister influences.
(a.) Wrong, as springing from indirection or obliquity; perverse; dishonest; corrupt; as, sinister aims.
(a.) Indicative of lurking evil or harm; boding covert danger; as, a sinister countenance.
Example Sentences:
(1) The committee's findings include that the attacks were not extensively planned by the perpetrators; the intelligence community did a good job of warning about the risk of an attack but a bad job of summarizing the attack when it happened; the state department screwed up by not beefing up security at the mission; nobody blocked any military response; and that the Obama administration was slow to produce a paper trail but was generally not a sinister actor in the episode.
(2) He should not try to play political games with the darkest and most sinister chapter of Europe’s history.
(3) The American actor played sinister rookie methylamine chemist Todd Alquist in the final season of Breaking Bad.
(4) Camille O'Sullivan In 2007, the sinister, humorous gem Between the Devil and the Deep Blue Sea spread like wildfire just after its opening, and you had to kill to get a ticket.
(5) Wenger had complained of a sinister media plot to brainwash Arsenal's home fans, as though they were easily led and swing in the breeze, but it all was sweetness and light as Aaron Ramsey continued his early season swagger.
(6) The Chinese government is depicted as benevolent, while the US government manages to be both sinister and useless – typified by the black-clad CIA operatives, one of whom gets beaten up by a Chinese character.
(7) The results showed a very good distribution of 100% or 90% in the bronchi principals dexter and sinister.
(8) The Velvet Underground’s sinisterly thrilling, entirely unapologetic musical portraits of New York’s gay, drug-taking demimonde must have seemed overwhelming to a British suburban kid in the late 60s.
(9) The latest film sees Bond travel from Mexico to the Sahara desert, Italy and the Austrian Alps in pursuit of SPECTRE – an acronym for Special Executive for Counter-Intelligence, Terrorism, Revenge and Extortion – the sinister organisation intent on world domination.
(10) Sinister individuals in lab coats "advising" from behind the scenes?
(11) "But this can be taken out of my hands in a number of sinister ways."
(12) The police had handed control of the investigation to Paul Britton, a grandstanding and, in my view, faintly sinister, psychologist.
(13) The stories range from the subtly sinister to the outrageously gothic.
(14) Other more sinister forces have tried to tap into the widespread hostility towards the banking system.
(15) Rumours abound that Trump has had some link to Putin’s sinister finances.
(16) This is especially so where its occasional presentation as polypoid lesions of the lower respiratory tract may mimic other more sinister lesions and lead to unwarranted invasive procedures by the unsuspecting clinician.
(17) It would be possible to write off the Swartz prosecution (as some have done) as the action of a politically ambitious attorney general, but actually it fits a much more sinister pattern.
(18) In retrospect, the movement was not just horrific but often ludicrous in its paranoia: the most "sinister" aspect of one supposed conspiracy, notes the book Mao's Last Revolution , was that even some of its core members appeared unaware of its existence.
(19) I don’t know how well thought-through they have been with it.” “You have a medical issue at your home, you call police, you don’t expect it to to be recorded on video forever, and for somebody to come and request [it] and be used against you in some sinister way,” said Gibbons, about the recordings potentially being public record.
(20) EL: The first psychiatrist I saw subscribed very much to the same view as my friend and the GP – that my voice (and bear in mind, it's still only a single voice at this time) was a sinister harbinger of something much more serious.