(v. i.) To drop the head or person suddenly; to bow.
(n.) A pet; a darling.
(n.) A linen (or sometimes cotton) fabric, finer and lighter than canvas, -- used for the lighter sails of vessels, the sacking of beds, and sometimes for men's clothing.
(n.) The light clothes worn by sailors in hot climates.
(v. t.) To thrust or plunge under water or other liquid and suddenly withdraw.
(v. t.) To plunge the head of under water, immediately withdrawing it; as, duck the boy.
(v. t.) To bow; to bob down; to move quickly with a downward motion.
(v. i.) To go under the surface of water and immediately reappear; to dive; to plunge the head in water or other liquid; to dip.
(v. t.) Any bird of the subfamily Anatinae, family Anatidae.
(v. t.) A sudden inclination of the bead or dropping of the person, resembling the motion of a duck in water.
Example Sentences:
(1) The move was confirmed by a Lib Dem aide, who said Tory claims to be green were "already a lame duck and are now dead in the water".
(2) The temperature of the anterior and middle hypothalamus of conscious Pekin ducks was altered with chronically implanted thermodes.
(3) Previous studies in the rat, mouse and duck had suggested that agents present in cigarette smoke might induce a cytochrome P450-mediated detoxication pathway, leading to protection against aflatoxin-induced primary liver cancer.
(4) Prolactin plasma concentrations decreased rapidly at the end of incubation in ducks which successfully hatched young as well as in unsuccessful incubators.
(5) From ducks A. laidlawii, M. anatis and various unclassified strains were isolated, among these M. anatis and unclassified arginine splitting mycoplasma strains proved to be pathogenic.
(6) The early phases of hepadnaviral infection were studied in primary duck hepatocyte cultures.
(7) In intact ducks changes in blood flow were recorded as changes in digital subcutaneous tissue temperature.
(8) But on Sunday night it was hard to duck the euphoria.
(9) In the Commons on Monday , John Whittingdale, the culture secretary who only in February chaired the committee that concluded “No future licence fee negotiations must be conducted in the way of the 2010 settlement”, ducked the invitation to explain how exactly the same thing had just happened again.
(10) He was never an intellectual; at Oxford, he did no work, and was proudest of playing squash and cricket for the university, though against Cambridge at Lord's he failed to take a wicket and made a duck.
(11) Adult mallard ducks fed 0, 2, 20, or 200 ppm of cadmium chloride in the diet were sacrificed at 30-day intervals and tissues were analyzed for cadmium.
(12) Typical herpesviral capsids and virions were seen in negatively-stained preparations of duck embryo fibroblasts.
(13) To study the effect of air sac pressures, a controllable pressure difference was produced between the air sac orifices of fixed duck lungs.
(14) Images of dead ducks in oil sands tailings pond have been plastered on billboards in Denver, Portland, Seattle and Minneapolis.
(15) You cannot now duck the fact that we have an electoral system which is completely out of step with the aspirations and hopes of millions of British people," he said.
(16) Three Newcastle disease viruses (NDV) isolated from wild ducks in Japan were evaluated for their biological activities, pathogenicity and immunogenicity against one-day-old chickens.
(17) With these synthetic peptides, radioimmunoassay systems for dog, rat, and duck C-peptides were developed.
(18) On the basis of the antiviral action of sulfated polyanions in human immunodeficiency virus and other viral infections, we studied the effect of dextran sulfate and heparin on duck hepatitis B virus infection.
(19) The (Na+ plus K+)-ATPase activities in salt gland homogenates increased 3- to 4-fold after saline treatment of ducks for 3 weeks.
(20) Compared with intact ducks, neither decerebration nor brain stem transection at the rostral mesencephalic (RM) level had any effect on development of diving bradycardia, or heart rate at the end of two-min dives.
Zero
Definition:
(n.) A cipher; nothing; naught.
(n.) The point from which the graduation of a scale, as of a thermometer, commences.
(n.) Fig.: The lowest point; the point of exhaustion; as, his patience had nearly reached zero.
Example Sentences:
(1) The method is implemented with a digital non-causal (zero-phase shift) filter, based on the convolution with a finite impulse response, to make the computation time compatible with the use of low-cost microcomputers.
(2) Of great influence on the results of measurements are preparation and registration (warm-up-time, amplification, closeness of pressure-system, unhurt catheters), factors relating to equipment and methods (air-bubbles in pressure-system, damping by filters, continuous infusion of the micro-catheter, level of zero-pressure), factors which occur during intravital measurement (pressure-drop along the arteria pulmonalis, influence of normal breathing, great intrapleural pressure changes, pressure damping in the catheter by thrombosis and external disturbances) and last not least positive and negative acceleration forces, which influence the diastolic and systolic pulmonary artery pressure.
(3) The final model has a probability 0.08 of underlying survival time being zero and, given non-zero survival time, takes the form of an exponential distribution with mean of 14.95 months.
(4) Robert Francis QC's official report in February on the Mid Staffordshire care scandal, in which an estimated 400 to 1,200 patients died unnecessarily at Stafford hospital between 2005 and 2008, called for the NHS to make "zero harm" its objective.
(5) Proper maintenance of body orientation was defined to be achieved if the net angular displacement of the head-and-trunk segment was zero during the flight phase of the long jump.
(6) Electromagnetic flow probes with an inner diameter of 2, 1.5 and 1 nm were used for studies on zero-line drifting and for calibration procedures in a series of rats and rabbits.
(7) The open probability is weakly voltage dependent, large at zero and positive potentials (cytoplasm minus SR lumen), and decreasing at negative potentials.
(8) Stepwise depolarizations from the holding potential (-67 to -83 mV) to a potential which varied from -10 to +63 mV resulted in an exponential decline of h from its initial level to a final, non-zero level.
(9) Average increases in nonvellus hair counts between months 4 and 12 were 216, 181, and 264 in the 2% minoxidil, 3% minoxidil, and placebo-to-3% minoxidil crossover groups, respectively, all highly significant differences from zero (p = 0.0001).
(10) For data sampled at a high rate (approximately 200 Hz) pupil velocity deviations from zero can simply be used, giving a satisfactory inaccuracy of about 5 ms. For data sampled at a low rate (less than 50 Hz), e.g.
(11) In 15 patients undergoing aortofemoral bypass, partial thromboplastin time (PTT) tests before and following intravenous administration of 75 U. per kilogram of heparin at zero, 30, 60, 90, and 120 minutes were determined for study of control of anticoagulant adequacy.
(12) As an index of inhomogeneous distribution of inspired air, the mean dilution number (the ratio of the first to zero moments) was calculated from each multibreath nitrogen washout during spontaneous breathing.
(13) Blood pressure was measured with a random-zero sphygmomanometer every 2 weeks of this 8-week trial.
(14) Pairwise correlation between an affected parent and child is zero: The disease is monogenic (no major expression gene).
(15) Where no fluoride was taken zero dmf scores were 41-69 per cent.
(16) He deploys a zero-risk strategy aimed at keeping his rightwing political base behind him, while convincing the public that he alone could lead the country in times of regional turmoil.
(17) Furthermore, the value of the flux ratio for this substance under conditions of zero electrochemical potential across the bowel wall unequivocally demonstrates active transport.
(18) As a result, more and more people are beginning to look towards Irish reunification as being a real possibility.” The overriding issue, however, in this most marginal constituency in Northern Ireland is the old binary, sectarian one: the zero-sum game of orange versus green.
(19) A reduction of tidal volume to zero or an increase by 30% led to a corresponding change of mean carotid artery pH level.
(20) The incidence of probable type B viral hepatitis in patients receiving factor IX concentrate was 13.8 percent (four of 29) versus zero percent (zero of 29) in control patients (difference not significant).