Black lead () Plumbago |
Lead (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. |
Lead (n.) An article made of lead or an alloy of lead |
Lead (n.) A plummet or mass of lead, used in sounding at sea. |
Lead (n.) A thin strip of type metal, used to separate lines of type in printing. |
Lead (n.) Sheets or plates of lead used as a covering for roofs |
Lead (n.) A small cylinder of black lead or plumbago, used in pencils. |
Lead (v. t.) To cover, fill, or affect with lead |
Lead (v. t.) To place leads between the lines of |
Lead (v. t.) To guide or conduct with the hand, or by means of some physical contact connection |
Lead (v. t.) To guide or conduct in a certain course, or to a certain place or end, by making the way known |
Lead (v. t.) To conduct or direct with authority |
Lead (v. t.) To go or to be in advance of |
Lead (v. t.) To draw or direct by influence, whether good or bad |
Lead (v. t.) To guide or conduct one's self in, through, or along (a certain course) |
Lead (v. t.) To begin a game, round, or trick, with |
Lead (v. i.) To guide or conduct, as by accompanying, going before, showing, influencing, directing with authority, etc. |
Lead (v. t.) To tend or reach in a certain direction, or to a certain place |
Lead (n.) The act of leading or conducting |
Lead (n.) precedence |
Lead (n.) The act or right of playing first in a game or round |
Lead (n.) An open way in an ice field. |
Lead (n.) A lode. |
Lead (n.) The course of a rope from end to end. |
Lead (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. |
Lead (n.) the distance of haul, as from a cutting to an embankment. |
Lead (n.) The action of a tooth, as a tooth of a wheel, in impelling another tooth or a pallet. |
lead | the playing of a card to start a trick in bridge, the lead was in the dummy |
lead | 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 |
clip lead | a short piece of wire with alligator clips on both ends |
jumper cable jumper lead lead booster cable | a jumper that consists of a short piece of wire, it was a tangle of jumper cables and clip leads |
lead pencil lead | mixture of graphite with clay in different degrees of hardness, the marking substance in a pencil |
lead leading | thin strip of metal used to separate lines of type in printing |
lead-acid battery lead-acid accumulator | a battery with lead electrodes with dilute sulphuric acid as the electrolyte, each cell generates about volts |
lead-in | wire connecting an antenna to a receiver or a transmitter to a transmission line |
lead line sounding line | (nautical) plumb line for determining depth |
lead pencil | pencil that has graphite as the marking substance |
leash tether lead | restraint consisting of a rope (or light chain) used to restrain an animal |
sounding lead | a metal bob at the end of a sounding line |
spark advance lead | the timing of ignition relative to the position of the piston in an internalombustion engine |
lead | an advantage held by a competitor in a race, he took the lead at the last turn |
lead track trail | evidence pointing to a possible solution, the police are following a promising lead, the trail led straight to the perpetrator |
lead lead-in lede | the introductory section of a story, it was an amusing lead-in to a very serious matter |
lead lead story | a news story of major importance |
tip lead steer confidential information wind hint | an indication of potential opportunity, he got a tip on the stock market, a good lead for a job |
lead sheet | a sheet containing the words and melody for a song (and some indication of harmony) written in simple form |
lead bank agent bank | a bank named by a lending syndicate of several banks to protect their interests |
lead | (baseball) the position taken by a base runner preparing to advance to the next base, he took a long lead off first |
star principal lead | an actor who plays a principal role |
lead tree white popinac Leucaena glauca Leucaena leucocephala | low scrubby tree of tropical and subtropical North America having white flowers tinged with yellow resembling mimosa and long flattened pods |
leadplant lead plant Amorpha canescens | shrub of sandy woodlands and stream banks of western United States having hoary pinnate flowers and dullolored racemose flowers, thought to indicate the presence of lead ore |
lead | (sports) the score by which a team or individual is winning |
lead | the angle between the direction a gun is aimed and the position of a moving target (correcting for the flight time of the missile) |
lead poisoning plumbism saturnism | toxic condition produced by the absorption of excessive lead into the system |
lead colic painter's colic | symptom of chronic lead poisoning and associated with obstinate constipation |
lead arsenate | a poisonous white solid (Pb[AsO]) used as an insecticide |
tetraethyl lead lead tetraethyl | a clear oily poisonous liquid added to gasoline to prevent knocking |
lead Pb atomic number | a soft heavy toxic malleable metallic element, bluish white when freshly cut but tarnishes readily to dull grey, the children were playing with lead soldiers |
cerussite white lead ore | a mineral consisting of lead carbonate that is an important source of lead |
pyromorphite green lead ore | a mineral consisting of lead chloride and phosphate, a minor source of lead |
red-lead putty | a cement resembling putty, made by mixing white and red lead in boiled linseed oil, used as luting on pipe fittings |
graphite black lead plumbago | used as a lubricant and as a moderator in nuclear reactors |
lead chromate | a poisonous chromate of lead used as a pigment in paint |
lead glass | glass containing lead oxide, has a high refractive index |
hard lead | unrefined lead that is hard because of the impurities it contains |
hard lead antimonial lead | a lead alloy that contains about % antimony |
lead ore | ore containing lead |
pig lead | lead that is cast in pigs |
lead acetate sugar of lead | a poisonous white solid (Pb[CHCO]) used in dyeing cotton and in making enamels and varnishes |
red lead minium | a reddish oxide of lead (PbO) used as a pigment in paints and in glass and ceramics |
white lead ceruse lead carbonate | a poisonous white pigment that contains lead |
lead time | the time interval between the initiation and the completion of a production process, the lead times for many publications can vary tremendously, planning is an area where lead time can be reduced |
begin lead off start commence | set in motion, cause to start, The U.S. started a war in the Middle East, The Iraqis began hostilities, begin a new chapter in your life |
lead up initiate | set in motion, start an event or prepare the way for, Hitler's attack on Poland led up to World War II |
lead | cause to undertake a certain action, Her greed led her to forge the checks |
lead on | entice or induce especially when unwise or mistaken |
moderate chair lead | preside over, John moderated the discussion |