(n.) One of the elements, a heavy, pliable, inelastic metal, having a bright, bluish color, but easily tarnished. It is both malleable and ductile, though with little tenacity, and is used for tubes, sheets, bullets, etc. Its specific gravity is 11.37. It is easily fusible, forms alloys with other metals, and is an ingredient of solder and type metal. Atomic weight, 206.4. Symbol Pb (L. Plumbum). It is chiefly obtained from the mineral galena, lead sulphide.
(n.) An article made of lead or an alloy of lead
(n.) A plummet or mass of lead, used in sounding at sea.
(n.) A thin strip of type metal, used to separate lines of type in printing.
(n.) Sheets or plates of lead used as a covering for roofs; hence, pl., a roof covered with lead sheets or terne plates.
(n.) A small cylinder of black lead or plumbago, used in pencils.
(v. t.) To cover, fill, or affect with lead; as, continuous firing leads the grooves of a rifle.
(v. t.) To place leads between the lines of; as, to lead a page; leaded matter.
(v. t.) To guide or conduct with the hand, or by means of some physical contact connection; as, a father leads a child; a jockey leads a horse with a halter; a dog leads a blind man.
(v. t.) To guide or conduct in a certain course, or to a certain place or end, by making the way known; to show the way, esp. by going with or going in advance of. Hence, figuratively: To direct; to counsel; to instruct; as, to lead a traveler; to lead a pupil.
(v. t.) To conduct or direct with authority; to have direction or charge of; as, to lead an army, an exploring party, or a search; to lead a political party.
(v. t.) To go or to be in advance of; to precede; hence, to be foremost or chief among; as, the big sloop led the fleet of yachts; the Guards led the attack; Demosthenes leads the orators of all ages.
(v. t.) To draw or direct by influence, whether good or bad; to prevail on; to induce; to entice; to allure; as, to lead one to espouse a righteous cause.
(v. t.) To guide or conduct one's self in, through, or along (a certain course); hence, to proceed in the way of; to follow the path or course of; to pass; to spend. Also, to cause (one) to proceed or follow in (a certain course).
(v. t.) To begin a game, round, or trick, with; as, to lead trumps; the double five was led.
(v. i.) To guide or conduct, as by accompanying, going before, showing, influencing, directing with authority, etc.; to have precedence or preeminence; to be first or chief; -- used in most of the senses of lead, v. t.
(v. t.) To tend or reach in a certain direction, or to a certain place; as, the path leads to the mill; gambling leads to other vices.
(n.) The act of leading or conducting; guidance; direction; as, to take the lead; to be under the lead of another.
(n.) precedence; advance position; also, the measure of precedence; as, the white horse had the lead; a lead of a boat's length, or of half a second.
(n.) The act or right of playing first in a game or round; the card suit, or piece, so played; as, your partner has the lead.
(n.) The course of a rope from end to end.
(n.) The width of port opening which is uncovered by the valve, for the admission or release of steam, at the instant when the piston is at end of its stroke.
(n.) the distance of haul, as from a cutting to an embankment.
(n.) The action of a tooth, as a tooth of a wheel, in impelling another tooth or a pallet.
Example Sentences:
(1) Thirty-two patients (10 male, 22 female; age 37-82 years) undergoing maintenance haemodialysis or haemofiltration were studied by means of Holter device capable of simultaneously analysing rhythm and ST-changes in three leads.
(2) Herpesviruses such as EBV, HSV, and human herpes virus-6 (HHV-6) have a marked tropism for cells of the immune system and therefore infection by these viruses may result in alterations of immune functions, leading at times to a state of immunosuppression.
(3) LHRH therapy leads to higher plasma LH levels and a lower FSH in response to an intravenous LHRH test.
(4) These results demonstrate that increased availability of galactose, a high-affinity substrate for the enzyme, leads to increased aldose reductase messenger RNA, which suggests a role for aldose reductase in sugar metabolism in the lens.
(5) These are typically runaway processes in which global temperature rises lead to further releases of CO², which in turn brings about more global warming.
(6) Results indicated a .85 probability that Directive Guidance would be followed by Cooperation; a .67 probability that Permissiveness would lead to Noncooperation; and a .97 likelihood that Coerciveness would lead to either Noncooperation or Resistance.
(7) It would be fascinating to see if greater local government involvement in running the NHS in places such as Manchester leads over the longer term to a noticeable difference in the financial outlook.
(8) The Frenchman’s 65th-minute goal was a fifth for United and redemptive after he conceded the penalty from which CSKA Moscow took a first-half lead.
(9) Our results indicate that increasing the delay for more than 8 days following irradiation and TCD syngeneic BMT leads to a rapid loss of the ability to achieve alloengraftment by non-TCD allogeneic bone marrow.
(10) report the complications registered, in particular: lead's displacing 6.2%, run away 0.7%, marked hyperthermya 0.0%, haemorrage 0.4%, wound dehiscence 0.3%, asectic necrosis by decubitus 5%, septic necrosis 0.3%, perforation of the heart 0.2%, pulmonary embolism 0.1%.
(11) The availability and success of changes in reproductive technology should lead to a reappraisal of the indications for hysterectomy, especially in young women.
(12) Photoirradiation of F1 in the presence of the analog leads to inactivation depending linearly on the incorporation of label.
(13) In patients with coronary artery disease, electrocardiographic signs of left atrial enlargement (LAE-negative P wave deflection greater than or equal to 1 mm2 in lead V1) are associated with increased left ventricular end diastolic pressure (LVEDP).
(14) The new Somali government has enthusiastically embraced the new deal and created a taskforce, bringing together the government, lead donors (the US, UK, EU, Norway and Denmark), the World Bank and civil society.
(15) Suggested is a carefully prepared system of cycling videocassettes, to effect the dissemination of current medical information from leading medical centers to medical and paramedical people in the "bush".
(16) Mitonafide is the lead compound of a new series of antitumor drugs, the 3-Nitronaphthalimides, which have shown antineoplastic activity in vitro as well as in vivo.
(17) The presently available data allow us to draw the following conclusions: 1) G proteins play a mediatory role in the transmission of the signal(s) generated upon receptor occupancy that leads to the observed cytoskeletal changes.
(18) In the case presented, overdistension of a jejunostomy catheter balloon led to intestinal obstruction and pressure necrosis (of the small bowel), with subsequent abscess formation leading to death from septicemia.
(19) This is rapidly followed by a gamut of changes leading to demyelination.
(20) In crosses between inverted repeats, a single intrachromatid reciprocal exchange leads to inversion of the sequence between the crossover sites and recovery of both genes involved in the event.
Trigger
Definition:
(n.) A catch to hold the wheel of a carriage on a declivity.
(n.) A piece, as a lever, which is connected with a catch or detent as a means of releasing it; especially (Firearms), the part of a lock which is moved by the finger to release the cock and discharge the piece.
Example Sentences:
(1) It has been generally believed that the ligand-binding of steroid hormone receptors triggers an allosteric change in receptor structure, manifested by an increased affinity of the receptor for DNA in vitro and nuclear target elements in vivo, as monitored by nuclear translocation.
(2) PMNs could be primed for PMA-triggered oxidative burst by muramyl peptide molecules (MDP) and two of its adjuvant active nonpyrogenic derivatives.
(3) The automatic half of both the motor which advances the trepan as well as the second motor which rotates the trepan is triggered by the sudden change in electrical resistance between the trepan and the patient's internal body fluid, at the final stage of penetration.
(4) The mechanism by which gp55 causes increased erythroblastosis and ultimately leukaemia is unknown, but a reasonable suggestion is that gp55 can mimic the action of erythropoietin by binding to its receptor (Epo-R), thereby triggering prolonged proliferation of erythroid cells.
(5) Tactile stimulation of a coin-sized area in a T-2 dermatome consistently triggered a lancinating pain in the ipsilateral C-8 dermatome in a 38-year-old woman.
(6) It did the job of triggering growth, but it also fueled real-estate speculation, similar to what was going on in the mid-2000s here.” Slowing economic growth may be another concern.
(7) The findings suggest that mast cell prostaglandins are an important factor in the pathogenesis of pruritus and that local vascular responses may trigger mast cell degranulation.
(8) Among the agents triggering such an infection Chlamydia (30.9% of the cases of non-gonorrhoic urethritis), as well as mycoplasma, ureaplasma, anaerobic bacteria and herpes simplex viruses have gained particular significance.
(9) The role of surgery in triggering the reactivation of latent HSV-1, and the differences in rates of viral shedding between American and Japanese are discussed.
(10) The present results suggest that TMB-8 blocks twitches by preventing the release of Ca++ ions bound to the intracellular surface of the t-tubular membrane which is often called the store of 'trigger-calcium' ions.
(11) The figures, published in the company’s annual report , triggered immediate anger from fuel poverty campaigners who noted that energy suppliers had just been rapped over the knuckles by the Competition and Markets Authority (CMA) for overcharging .
(12) This is triggered not so much by climate change but the cause of global warming itself: the burning of fossil fuels both inside and outside the home, says Farrar.
(13) 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.
(14) The results suggest an essential role of IL-6 for triggering of CD4+ T cells via the CD2 molecule.
(15) Defects in self-tolerance mechanisms could provide the genetic basis of disease or the target for environmental triggers.
(16) It is therefore suggested that salt water adaptation triggers a cellular reorganization of the epithelium in such a way that leaky junctions (a low resistance pathway) appear at the apex of the chloride cells.
(17) We report that kainic acid lesions of the posterior corpus striatum, which preferentially spare fibers of passage while destroying striatopallidal neurons, produce a stimulus-sensitive movement pattern in rats that has a highly specific sensory trigger.
(18) These results are consistent with the idea that RPE pigment dispersion is triggered by a substance that diffuses from the retina at light onset.
(19) The additional value of these methods, especially of the intensive monitoring, lies also in the possibility of compiling new knowledge about semiology and electro-clinical correlation of epileptic seizures, possible trigger mechanisms and long-term therapeutic effects.
(20) The publicity surrounding the Rotherham child exploitation scandal, which triggered the resignation of Shaun Wright, the previous PCC, did not translate into a high turnout, with only 14.65% of the electorate casting a vote.