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lead |
10 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Lead \Lead\ (l[e^]d), n. [OE. led, leed, lead, AS le['a]d; akin to D. lood, MHG. l[=o]t, G. loth plummet, sounding lead, small weight, Sw & Dan. lod. [root]123] 1. (Chem.) 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. 2. An article made of lead or an alloy of lead; as: a A plummet or mass of lead, used in sounding at sea. b (Print.) A thin strip of type metal, used to separate lines of type in printing. c Sheets or plates of lead used as a covering for roofs; hence pl., a roof covered with lead sheets or terne plates. I would have the tower two stories, and goodly leads upon the top --Bacon 3. A small cylinder of black lead or plumbago, used in pencils. {Black lead}, graphite or plumbago; -- so called from its leadlike appearance and streak. [Colloq.] {Coasting lead}, a sounding lead intermediate in weight between a hand lead and deep-sea lead. {Deep-sea lead}, the heaviest of sounding leads, used in water exceeding a hundred fathoms in depth. --Ham. Nav. Encyc. {Hand lead}, a small lead use for sounding in shallow water. {Krems lead}, {Kremnitz lead} [so called from Krems or Kremnitz in Austria], a pure variety of white lead, formed into tablets, and called also {Krems, or Kremnitz white}, and {Vienna white}. {Lead arming}, tallow put in the hollow of a sounding lead. See {To arm the lead} (below). {Lead colic}. See under {Colic}. {Lead color}, a deep bluish gray color, like tarnished lead. {Lead glance}. (Min.) Same as {Galena}. {Lead line} a (Med.) A dark line along the gums produced by a deposit of metallic lead, due to lead poisoning. b (Naut.) A sounding line {Lead mill}, a leaden polishing wheel, used by lapidaries. {Lead ocher} (Min.), a massive sulphur-yellow oxide of lead. Same as {Massicot}. {Lead pencil}, a pencil of which the marking material is graphite (black lead). {Lead plant} (Bot.), a low leguminous plant, genus {Amorpha} ({A. canescens}), found in the Northwestern United States, where its presence is supposed to indicate lead ore. --Gray. {Lead tree}. a (Bot.) A West Indian name for the tropical, leguminous tree, {Leuc[ae]na glauca}; -- probably so called from the glaucous color of the foliage. b (Chem.) Lead crystallized in arborescent forms from a solution of some lead salt, as by suspending a strip of zinc in lead acetate. {Mock lead}, a miner's term for blende. {Red lead}, a scarlet, crystalline, granular powder, consisting of minium when pure, but commonly containing several of the oxides of lead. It is used as a paint or cement and also as an ingredient of flint glass. {Red lead ore} (Min.), crocoite. {Sugar of lead}, acetate of lead. {To arm the lead}, to fill the hollow in the bottom of a sounding lead with tallow in order to discover the nature of the bottom by the substances adhering. --Ham. Nav. Encyc. {To} {cast, or heave}, {the lead}, to cast the sounding lead for ascertaining the depth of water. {White lead}, hydrated carbonate of lead, obtained as a white, amorphous powder, and much used as an ingredient of white paint. From Webster's Revised Unabridged Dictionary (1913) [web1913]: Lead \Lead\, v. t. [imp. & p. p. {Leaded}; p. pr & vb n. {Leading}.] 1. To cover, fill, or affect with lead; as continuous firing leads the grooves of a rifle. 2. (Print.) To place leads between the lines of as to lead a page; leaded matter. From Webster's Revised Unabridged Dictionary (1913) [web1913]: Lead \Lead\ (l[=e]d), v. t. [imp. & p. p. {Led} (l[e^]d); p. pr & vb n. {Leading}.] [OE. leden, AS l[=ae]dan (akin to OS l[=e]dian, D. leiden, G. leiten, Icel. le[imac][eth]a, Sw leda, Dan. lede), properly a causative fr AS li[eth]an to go akin to OHG. l[imac]dan, Icel. l[imac][eth]a, Goth. lei[thorn]an (in comp.). Cf {Lode}, {Loath}.] 1. 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. If a blind man lead a blind man, both fall down in the ditch. --Wyclif (Matt. xv 14.) They thrust him out of the city, and led him unto the brow of the hill. --Luke iv 29. In thy right hand lead with thee The mountain nymph, sweet Liberty. --Milton. 2. 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. The Lord went before them by day in a pillar of a cloud, to lead them the way --Ex. xiii. 21. He leadeth me beside the still waters. --Ps. xxiii. 2. This thought might lead me through the world's vain mask. Content, though blind, had I no better guide. --Milton. 3. 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. Christ took not upon him flesh and blood that he might conquer and rule nations, lead armies, or possess places. --South. 4. 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. As Hesperus, that leads the sun his way --Fairfax. And lo ! Ben Adhem's name led all the rest. --Leigh Hunt. 5. 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 He was driven by the necessities of the times, more than led by his own disposition, to any rigor of actions. --Eikon Basilike Silly women, laden with sins,led away by divers lusts. --2 Tim. iii. 6 (Rev. Ver.). 6. 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). That we may lead a quiet and peaceable life. --1 Tim. ii 2. Nor thou with shadowed hint confuse A life that leads melodious days. --Tennyson. You remember . . . the life he used to lead his wife and daughter. --Dickens. 7. (Cards & Dominoes) To begin a game, round, or trick, with as to lead trumps; the double five was led. {To lead astray}, to guide in a wrong way or into error; to seduce from truth or rectitude. {To lead captive}, to carry or bring into captivity. {To lead the way}, to show the way by going in front; to act as guide. --Goldsmith. From Webster's Revised Unabridged Dictionary (1913) [web1913]: Lead \Lead\, n. 1. The act of leading or conducting; guidance; direction; as to take the lead; to be under the lead of another. At the time I speak of and having a momentary lead, . . . I am sure I did my country important service. --Burke. 2. 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 3. (Cards & Dominoes) 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. 4. An open way in an ice field. --Kane. 5. (Mining) A lode. 6. (Naut.) The course of a rope from end to end 7. (Steam Engine) 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. Note: When used alone it means outside lead, or lead for the admission of steam. Inside lead refers to the release or exhaust. 8. (Civil Engineering) the distance of haul, as from a cutting to an embankment. 9. (Horology) The action of a tooth, as a tooth of a wheel, in impelling another tooth or a pallet. --Saunier. {Lead angle} (Steam Engine), the angle which the crank maker with the line of centers, in approaching it at the instant when the valve opens to admit steam. {Lead screw} (Mach.), the main longitudinal screw of a lathe, which gives the feed motion to the carriage. From Webster's Revised Unabridged Dictionary (1913) [web1913]: Lead \Lead\, v. i. 1. To guide or conduct, as by accompanying, going before showing, influencing, directing with authority, etc.; to have precedence or pre["e]minence; to be first or chief; -- used in most of the senses of lead, v. t. 2. 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. The mountain foot that leads towards Mantua. --Shak. {To lead} {off or out}, to go first to begin. From Webster's Revised Unabridged Dictionary (1913) [web1913]: Lead \Lead\, n. 1. (Music.) a The announcement by one voice part of a theme to be repeated by the other parts b A mark or a short passage in one voice part as of a canon, serving as a cue for the entrance of others 2. In an internal-combustion engine, the distance, measured in actual length of piston stroke or the corresponding angular displacement of the crank, of the piston from the end of the compression stroke when ignition takes place -- called in full {lead of the ignition}. When ignition takes place during the working stroke the corresponding distance from the commencement of the stroke is called {negative lead}. 3. (Mach.) The excess above a right angle in the angle between two consecutive cranks, as of a compound engine, on the same shaft. 4. (Mach.) In spiral screw threads, worm wheels, or the like the amount of advance of any point in the spiral for a complete turn. 5. (Elec.) a A conductor conveying electricity, as from a dynamo. b The angle between the line joining the brushes of a continuous-current dynamo and the diameter symmetrical between the poles. c The advance of the current phase in an alternating circuit beyond that of the electromotive force producing it 6. (Theat.) A r[^o]le for a leading man or leading woman; also one who plays such a r[^o]le. From WordNet r 1.6 [wn]: lead n 1: an advantage held by a competitor in a race: "he took the lead at the last turn" 2: a soft heavy toxic malleable metallic element; bluish white when freshly cut but tarnishes readily to dull gray; "the children were playing with lead soldiers" [syn: {Pb}, {atomic number 82}] 3: evidence pointing to a possible solution; "the police are following a promising lead"; "the trail led straight to the perpetrator" [syn: {track}, {trail}] 4: a position of leadership (especially in the phrase `take the lead'); "he takes the lead in any group"; "we were just waiting for someone to take the lead"; "they didn't follow our lead" 5: the angle between the direction a gun is aimed and the position of a moving target (correcting for the flight time of the missile) 6: the introductory section of a story; "it was an amusing lead-in to a very serious matter" [syn: {lead-in}] 7: an actor who plays a principal role [syn: {star}, {principal}] 8: (baseball) the position taken by a base runner preparing to advance to the next base; "he took a long lead off first" 9: an indication of potential opportunity; "he got a tip on the stock market"; "a good lead for a job" [syn: {tip}, {steer}, {confidential information}, {wind}, {hint}] 10: a news story of major importance [syn: {lead story}] 11: the timing of ignition relative to the position of the piston in an internal-combustion engine [syn: {spark advance}] 12: a rope (or light chain) used to restrain an animal [syn: {leash}, {tether}] 13: a thin strip of metal used to separate lines of type in printing [syn: {leading}] 14: a mixture of graphite with clay in different degrees of hardness; the marking substance in a pencil [syn: {pencil lead}] 15: a jumper that consists of a short piece of wire; "it was a tangle of jumper cables and clip leads" [syn: {jumper cable}, {jumper lead}] 16: the playing of a card to start a trick in bridge; "the lead was in the dummy" v 1: take somebody somewhere; "We lead him to our chief"; "can you take me to the main entrance?"; "He conducted us to the palace" [syn: {take}, {direct}, {conduct}, {guide}] 2: result in "The water left a mark on the silk dress"; "Her blood left a stain on the napkin" [syn: {leave}, {result}] 3: tend to or result in "This remark lead to further arguments among the guests" 4: travel in front of go in advance of others: "The procession was headed by John" [syn: {head}] 5: cause to undertake a certain action "Her greed led her to forge the checks" 6: stretch out over a distance, space, time, or scope; run or extend between two points or beyond a certain point; "Service runs all the way to Cranbury"; "His knowledge doesn't go very far"; "My memory extends back to my fourth year of life"; "The facts extend beyond a consideration of her personal assets" [syn: {run}, {go}, {pass}, {extend}] 7: be in charge of "Who is heading this project?" [syn: {head}] 8: be ahead of others be at the top be the first 9: be conducive to "The use of computers in the classroom lead to better writing" [syn: {contribute}, {conduce}] 10: lead; "conduct an orchestra" [syn: {conduct}, {direct}] 11: pass or spend; "lead a good life" 12: lead. extend, or afford access "This door goes to the basement"; "The road runs South" [syn: {go}] 13: move ahead (of others) in time or space [syn: {precede}] [ant: {follow}] 14: cause something to pass or lead somewhere; "Run the wire behind the cabinet" [syn: {run}] 15: preside over "John moderated the discussion" [syn: {moderate}, {chair}] From U.S. Gazetteer (1990) [gazetteer]: Lead, SD (city, FIPS 36220) Location: 44.35213 N, 103.76693 W Population (1990): 3632 (1654 housing units) Area: 4.9 sq km (land), 0.0 sq km (water) From Elements database 20001107 [elements]: lead Symbol: Pb Atomic number: 82 Atomic weight: 207.19 Heavy dull grey ductile metallic element, belongs to group 14. Used in building construction, lead-place accumulators, bullets and shot, and is part of solder, pewter, bearing metals, type metals and fusible alloys. From THE DEVIL'S DICTIONARY ((C)1911 Released April 15 1993) [devils]: LEAD, n. A heavy blue-gray metal much used in giving stability to light lovers -- particularly to those who love not wisely but other men's wives. Lead is also of great service as a counterpoise to an argument of such weight that it turns the scale of debate the wrong way An interesting fact in the chemistry of international controversy is that at the point of contact of two patriotisms lead is precipitated in great quantities. Hail, holy Lead! -- of human feuds the great And universal arbiter; endowed With penetration to pierce any cloud Fogging the field of controversial hate, And with a sift, inevitable, straight, Searching precision find the unavowed But vital point. Thy judgment, when allowed By the chirurgeon, settles the debate. O useful metal! -- were it not for thee We'd grapple one another's ears alway: But when we hear thee buzzing like a bee We like old Muhlenberg, "care not to stay." And when the quick have run away like pellets Jack Satan smelts the dead to make new bullets.
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