v.t.1. to go before or with to show the way; conduct or escort: to lead a group on a cross-country hike.2. to conduct by holding and guiding: to lead a horse by a rope.3. to influence or induce; cause: Subsequent events led him to reconsider his position.4. to guide in direction, course, action, opinion, etc.; bring: You can lead her around to your point of view if you are persistent.6. (of a road, passage, etc.) to serve to bring (a person) to a place: The first street on the left will lead you to Andrews Place.7. to take or bring: The prisoners were led into the warden's office.8. to command or direct (an army or other large organization): He led the Allied forces during the war.9. to go at the head of or in advance of (a procession, list, body, etc.); proceed first in: The mayor will lead the parade.10. to be superior to; have the advantage over: The first baseman leads his teammates in runs batted in.11. to have top position or first place in: Iowa leads the nation in corn production.12. to have the directing or principal part in: The minister will now lead us in prayer. He led a peace movement.13. to act as leader of (an orchestra, band, etc.); conduct.15. Cards. to begin a round, game, etc., with (a card or suit specified).16. to aim and fire a firearm or cannon ahead of (a moving target) in order to allow for the travel of the target while the bullet or shell is reaching it.17. Football. to throw a lead pass to (an intended receiver): The quarterback led the left end.v.i.18. to act as a guide; show the way: You lead and we'll follow.19. to afford passage to a place: That path leads directly to the house.20. to go first; be in advance: The band will lead and the troops will follow.21. to result in; tend toward (usually fol. by to): The incident led to his resignation. One remark often leads to another.22. to take the directing or principal part.23. to take the offensive: The contender led with a right to the body.24. Cards. to make the first play.25. to be led or submit to being led, as a horse: A properly trained horse will lead easily.26. Baseball. (of a base runner) to leave a base before the delivery of a pitch in order to reach the next base more quickly (often fol. by away).27. lead back, to play (a card) from a suit that one's partner led.28. lead off,a. to take the initiative; begin.b. Baseball. to be the first player in the batting order or the first batter in an inning.29. lead on,a. to induce to follow an unwise course of action; mislead.b. to cause or encourage to believe something that is not true.30. lead out,a. to make a beginning.b. to escort a partner to begin a dance: He led her out and they began a rumba.31. lead someone a chase or dance, to cause someone difficulty by forcing to do irksome or unnecessary things.33. lead up to,a. to prepare the way for.b. to approach (a subject, disclosure, etc.) gradually or evasively: I could tell by her allusions that she was leading up to something.n.34. the first or foremost place; position in advance of others: He took the lead in the race.35. the extent of such an advance position: He had a lead of four lengths.36. a person or thing that leads.37. a leash.38. a suggestion or piece of information that helps to direct or guide; tip; clue: I got a lead on a new job. The phone list provided some great sales leads.39. a guide or indication of a road, course, method, etc., to follow.40. precedence; example; leadership: They followed the lead of the capital in their fashions.41. Theat.a. the principal part in a play.b. the person who plays it.42. Cards.a. the act or right of playing first, as in a round.b. the card, suit, etc., so played.43. Journalism.a. a short summary serving as an introduction to a news story, article, or other copy.b. the main and often most important news story.44. Elect. an often flexible and insulated single conductor, as a wire, used in connections between pieces of electric apparatus.45. the act of taking the offensive.46. Naut.a. the direction of a rope, wire, or chain.b. Also called leader. any of various devices for guiding a running rope.47. Naval Archit. the distance between the center of lateral resistance and the center of effort of a sailing ship, usually expressed decimally as a fraction of the water-line length.48. an open channel through a field of ice.49. Mining.a. a lode.b. an auriferous deposit in an old riverbed.50. the act of aiming a gun ahead of a moving target.51. the distance ahead of a moving target that a gun must be aimed in order to score a direct hit.52. Baseball. an act or instance of leading.53. Manège. (of a horse at a canter or gallop) the foreleg that consistently extends beyond and strikes the ground ahead of the other foreleg: The horse is cantering on the left lead.adj.54. most important; principal; leading; first: lead editorial; lead elephant.55. Football. (of a forward pass) thrown ahead of the intended receiver so as to allow him to catch it while running.56. Baseball. (of a base runner) nearest to scoring: They forced the lead runner at third base on an attempted sacrifice.[bef. 900; ME leden, OE laedan (causative of lithan to go, travel); c. D leiden, G leiten, ON leitha]Syn. 1. accompany, precede. See guide. 3. persuade, convince. 10. excel, outstrip, surpass. 34. head, vanguard.Ant. 1. follow.lead2—leadless, adj./led/, n.1. Chem. a heavy, comparatively soft, malleable, bluish-gray metal, sometimes found in its natural state but usually combined as a sulfide, esp. in galena. Symbol: Pb; at. wt.: 207.19; at. no.: 82; sp. gr.: 11.34 at 20°C.2. something made of this metal or of one of its alloys.3. a plummet or mass of lead suspended by a line, as for taking soundings.4. bullets collectively; shot.5. black lead or graphite.6. a small stick of graphite, as used in pencils.7. Also, leading. Print. a thin strip of type metal or brass less than type-high, used for increasing the space between lines of type.8. a grooved bar of lead or came in which sections of glass are set, as in stained-glass windows.9. leads, Brit. a roof, esp. one that is shallow or flat, covered with lead.10. See white lead.11. get the lead out, Slang. to move or work faster; hurry up.12. heave the lead, Naut. to take a sounding with a lead.v.t.13. to cover, line, weight, treat, or impregnate with lead or one of its compounds.14. Print. to insert leads between the lines of.15. to fix (window glass) in position with leads.adj.16. made of or containing lead: a lead pipe; a lead compound.17. go over like a lead balloon, Slang. to fail to arouse interest, enthusiasm, or support.Syn. 3. weight, plumb.
* * *ILead is a soft, silvery white or grayish, malleable, ductile, dense metal that conducts electricity poorly. Its stable isotopes are all end products of radioactive decay of uranium and other heavy elements. Known since ancient times, lead is so durable and resistant to corrosion that Roman lead pipes are still usable. Lead is used in roofing, as cable coverings, and in pipes, conduits, and structures. Other uses are in storage batteries, ammunition, and low-melting-point alloys (e.g., solder, pewter) and as shielding against sound, vibrations, and radiation. Lead is rarely found free in nature; its major ore is the sulfide galena (PbS). Because it and its compounds are poisons (see lead poisoning), lead-based paints and gasoline additives have been phased out in many countries. Lead in compounds has valence 2 and 4; an oxide (litharge, PbO) is the most widely used. Lead compounds are added to lead crystal (see glass), glazes, and ceramics and are used as pigments, drying agents for paints and varnishes, insecticides and herbicides, and fireproofing agents and in matches, explosives, and pyrotechnics. Almost half of all lead is recovered from recycled scrap. The "lead" in pencils is graphite.II(as used in expressions)lead glancelead 210 datinguranium thorium lead datingcommon lead dating
* * *city, Lawrence county, western South Dakota, U.S. It lies in the northern Black Hills, about 40 miles (65 km) northwest of Rapid City, at an elevation of 5,280 feet (1,609 metres). Situated just southwest of Deadwood, it is built on the steep inclines of the hills. It was established in 1876 following the discovery of gold (gold rush) by Fred and Moses Manuel, and its name was inspired by the lode mines in the area, an outcrop of ore being termed a “lead.” Lead was South Dakota's largest city at the time of statehood in 1889. The city lost a major aspect of its economy with the closing of the Homestake Gold Mine (opened 1876), which was the world's oldest continuously operating gold mine until it closed in 2001; chemist Raymond Davis (Davis, Raymond, Jr.) received the 2002 Nobel Prize for Physics for his work in detecting neutrinos in a laboratory in the mine. Tourism, based primarily on the more than 80 gambling halls in Deadwood (where gambling was legalized in 1989), is now an economic mainstay. Some ranching and lumbering also take place in the area. Lead is surrounded by Black Hills National Forest and has many outdoor recreational opportunities, including two ski areas. The Black Hills Mining Museum has a simulation of an underground gold mine. Inc. 1890. Pop. (1990) 3,632; (2000) 3,027.
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