(a.) To make dark or black; to deprive of light; to obscure; as, a darkened room.
(a.) To render dim; to deprive of vision.
(a.) To cloud, obscure, or perplex; to render less clear or intelligible.
(a.) To cast a gloom upon.
(a.) To make foul; to sully; to tarnish.
(v. i.) To grow or darker.
Example Sentences:
(1) Immediate pigment darkening (IPD) occurs in human skin upon exposure to ultraviolet-A and visible radiation.
(2) There would never be a meeting in a darkened room where a winner was chosen just to fit an audience demographic or to create more entertaining telly.
(3) Each subject sat for 6 minutes in a darkened room and was told to memorize a list of words she heard form a tape.
(4) Normal, refractile spores were produced in each case; a portion of the barium spores lost refractility and darkened.
(5) Instead of coming to the bank, where we would be photographed coming in the front door, we were all to meet outside the McDonald's in Liverpool Street where we would be picked up in a people-carrier with darkened windows and driven in through the back of the bank.
(6) The final stage of germination was characterized by changes in the central spore region (core), notably phase darkening of the spore center and stainability with mercurochrome, and by a slight additional absorbancy decrease.
(7) Confluent patches of flat pigmentation appeared over the palpebral conjunctiva 18 weeks after the onset of treatment and showed progressive lateral enlargement and darkening.
(8) The 16 sites were qualitatively examined for evidence of resorption by either thinning or darkening of bone relative to the time immediately following surgery.
(9) Today's matches take place in a darkened hall within the stadium's towering walls, on the battlefields of multimillion-selling first-person shoot-'em-up Call of Duty .
(10) alpha-Melanocyte stimulating hormone (alpha-MSH) is a linear tridecapeptide (Ac-Ser-Tyr-Ser-Met-Glu-His-Phe-Arg-Trp-Gly-Lys-Pro-Val-NH2) that has diverse physiological functions in addition to its reversible darkening of amphibian skins by stimulating melanosome dispersion within melanophores.
(11) 1) Asphyxia induced marked body colour darkening and bradycardia.
(12) The most striking feature of such neurons was darkening of their dendrites associated with abnormally high density cytoplasm that contained mitochondria with disrupted cristae.
(13) Braving darkening skies, they were initially in an upbeat mood, belting out the samba rhythm of carnival classic I'm Going to Celebrate.
(14) With official unemployment data today expected to show a further rise in the long-term unemployed, the TUC argues young people were some of the worst affected by Britain's deep recession and their outlook could darken further as public sector job losses intensify.
(15) beta-Adrenoceptor blocking agents, in contrast, inhibit catecholamine-induced darkening but have no effect on MSH-induced darkening.
(16) During the hibernation period, the epiphyseal catecholamine charge is well detected in the garden dormouse; it appears more important in darkened animals at 22 degrees C and much less in animals under continuous lighting.
(17) Melanocyte stimulating hormone-induced darkening or dispersion of the granules was reversed by each of these metabolites.
(18) Reactivation of the enzyme extracted from darkened leaves was achieved simply by adding a thiol compound.
(19) By analyzing the synaptic relationships of such "darkened" dendrites, connections in the upper dorsal horn can be deciphered.
(20) The specific activity of the light enzyme was consistently about twice that of the dark form when assayed at suboptimal (but physiological) pH (pH 7.0-7.3), and the former was also less sensitive to feedback inhibition by L-malate than that from darkened leaves under various conditions.
Pitch
Definition:
(n.) That point of the ground on which the ball pitches or lights when bowled.
(n.) A thick, black, lustrous, and sticky substance obtained by boiling down tar. It is used in calking the seams of ships; also in coating rope, canvas, wood, ironwork, etc., to preserve them.
(n.) See Pitchstone.
(n.) To cover over or smear with pitch.
(n.) Fig.: To darken; to blacken; to obscure.
(v. t.) To throw, generally with a definite aim or purpose; to cast; to hurl; to toss; as, to pitch quoits; to pitch hay; to pitch a ball.
(v. t.) To thrust or plant in the ground, as stakes or poles; hence, to fix firmly, as by means of poles; to establish; to arrange; as, to pitch a tent; to pitch a camp.
(v. t.) To set, face, or pave with rubble or undressed stones, as an embankment or a roadway.
(v. t.) To fix or set the tone of; as, to pitch a tune.
(v. t.) To set or fix, as a price or value.
(v. i.) To fix or place a tent or temporary habitation; to encamp.
(v. i.) To light; to settle; to come to rest from flight.
(v. i.) To fix one's choise; -- with on or upon.
(v. i.) To plunge or fall; esp., to fall forward; to decline or slope; as, to pitch from a precipice; the vessel pitches in a heavy sea; the field pitches toward the east.
(n.) A throw; a toss; a cast, as of something from the hand; as, a good pitch in quoits.
(n.) A point or peak; the extreme point or degree of elevation or depression; hence, a limit or bound.
(n.) Height; stature.
(n.) A descent; a fall; a thrusting down.
(n.) The point where a declivity begins; hence, the declivity itself; a descending slope; the degree or rate of descent or slope; slant; as, a steep pitch in the road; the pitch of a roof.
(n.) The relative acuteness or gravity of a tone, determined by the number of vibrations which produce it; the place of any tone upon a scale of high and low.
(n.) The limit of ground set to a miner who receives a share of the ore taken out.
(n.) The distance from center to center of any two adjacent teeth of gearing, measured on the pitch line; -- called also circular pitch.
(n.) The length, measured along the axis, of a complete turn of the thread of a screw, or of the helical lines of the blades of a screw propeller.
(n.) The distance between the centers of holes, as of rivet holes in boiler plates.
Example Sentences:
(1) The pattern of the stressor that causes a change in the pitch can be often identified only tentatively, if there is no additional information.
(2) Tottenham Hotspur’s £400m redevelopment of White Hart Lane could include a retractable grass pitch as the club explores the possibility of hosting a new NFL franchise.
(3) For each theory, a constraint on preformance is proposed based on interference between the "analytic" and "synthetic" pitch perception modes.
(4) Pitch forward head movements exerted the strongest effect.
(5) A grassed roof, solar panels to provide hot water, a small lake to catch rainwater which is then recycled, timber cladding for insulation ... even the pitch and floodlights are "deliberately positioned below the level of the surrounding terrain in order to reduce noise and light pollution for the neighbouring population".
(6) Frankly, the pair had been at each other ever since the Frenchman had come on to the pitch.
(7) For a while North Korea refused to play, but after delicate negotiations the players were persuaded back on to the pitch and the correct flag was displayed alongside the team photos.
(8) Some artists get thousands of songs pitched and they never know, so Beyoncé herself probably never heard it.
(9) Sometimes in the other team’s half, sometimes in front of his own box, sometimes as the last man.” Die Zeit singles out Bayern’s veteran midfielder Schweinsteiger for praise: “In this historic, dramatic and fascinating victory over Argentina , Schweinsteiger was the boss on the pitch.
(10) Recent STM studies of calf thymus DNA and poly(rA).poly(rU) have shown that the helical pitch and periodic alternation of major and minor grooves can be visualized and reliably measured.
(11) 11.10pm BST Apart from the stumbles in the sales pitch, it's still not clear how the Abbott government will secure most of its budget.
(12) The living wage needs to be pitched at a higher level than Osborne has suggested and paid for by increased productivity.
(13) Patrick Vieira, captain and on-pitch embodiment of Wenger’s reign, won the trophy with the last kick of his career at the club in the season when the Arsenal-United axis was finally broken by Chelsea at the top of the Premier League.
(14) No changes for either side, but Zinedine Zidane has been whispering into Cristiano Ronaldo's ear as he retakes the pitch.
(15) While numerous studies on infant perception have demonstrated the infant's ability to discriminate sounds having different frequencies, little research has evaluated more sophisticated pitch perception abilities such as perceptual constancy and perception of the missing fundamental.
(16) The club train on a council-owned facility and so, when the pitches are not playable or there are other things on, they sometimes have to look elsewhere to stage their sessions.
(17) Their lineup proved to be stacked, with breakouts from AL home run leader Chris Davis and doubles machine Manny Machado, who powered the O's through starting-pitching issues to hang in a tight division.
(18) The cavernous studio will play host to a half-sized football pitch, where pundits will demonstrate what players did or didn't do correctly and there are other technological innovations planned that marry broadband interactivity with live coverage.
(19) But 30 minutes before takeoff on our private jet – like a top-end Lexus limo with wings – actress Rosamund Pike has heroically stepped in for the year's hot meal ticket: an El Bulli supper, pitch perfect for a selection of rare champagne, devised by Adrià with Richard Geoffroy, Dom Pérignon's effervescent chef de cave.
(20) He is helped by constituency boundaries that skew the pitch in Labour’s favour, but even then the leap required looks improbable.