资料来源 : Webster's Revised Unabridged Dictionary (1913)

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.



   {White elm} (Bot.), a majestic tree of North America ({Ulmus
      Americana}), the timber of which is much used for hubs of
      wheels, and for other purposes.

   {White ensign}. See {Saint George's ensign}, under {Saint}.
      

   {White feather}, a mark or symbol of cowardice. See {To show
      the white feather}, under {Feather}, n.

   {White fir} (Bot.), a name given to several coniferous trees
      of the Pacific States, as {Abies grandis}, and {A.
      concolor}.

   {White flesher} (Zo["o]l.), the ruffed grouse. See under
      {Ruffed}. [Canada]

   {White frost}. See {Hoarfrost}.

   {White game} (Zo["o]l.), the white ptarmigan.

   {White garnet} (Min.), leucite.

   {White grass} (Bot.), an American grass ({Leersia Virginica})
      with greenish-white pale[ae].

   {White grouse}. (Zo["o]l.)
      (a) The white ptarmigan.
      (b) The prairie chicken. [Local, U. S.]

   {White grub} (Zo["o]l.), the larva of the June bug and other
      allied species. These grubs eat the roots of grasses and
      other plants, and often do much damage.

   {White hake} (Zo["o]l.), the squirrel hake. See under
      {Squirrel}.

   {White hawk}, or {kite} (Zo["o]l.), the hen harrier.

   {White heat}, the temperature at which bodies become
      incandescent, and appear white from the bright light which
      they emit.

   {White hellebore} (Bot.), a plant of the genus {Veratrum}
      ({V. album}) See {Hellebore}, 2.

   {White herring}, a fresh, or unsmoked, herring, as
      distinguished from a red, or cured, herring. [R.] --Shak.

   {White hoolet} (Zo["o]l.), the barn owl. [Prov. Eng.]

   {White horses} (Naut.), white-topped waves; whitecaps.

   {The White House}. See under {House}.

   {White ibis} (Zo["o]l.), an American ibis ({Guara alba})
      having the plumage pure white, except the tips of the
      wings, which are black. It inhabits tropical America and
      the Southern United States. Called also {Spanish curlew}.
      

   {White iron}.
      (a) Thin sheets of iron coated with tin; tinned iron.
      (b) A hard, silvery-white cast iron containing a large
          proportion of combined carbon.

   {White iron pyrites} (Min.), marcasite.

   {White land}, a tough clayey soil, of a whitish hue when dry,
      but blackish after rain. [Eng.]

   {White lark} (Zo["o]l.), the snow bunting.

   {White lead}.
      (a) A carbonate of lead much used in painting, and for
          other purposes; ceruse.
      (b) (Min.) Native lead carbonate; cerusite.

   {White leather}, buff leather; leather tanned with alum and
      salt.

   {White leg} (Med.), milk leg. See under {Milk}.

   {White lettuce} (Bot.), rattlesnake root. See under
      {Rattlesnake}.

   {White lie}. See under {Lie}.

   {White light}.
      (a) (Physics) Light having the different colors in the
          same proportion as in the light coming directly from
          the sun, without having been decomposed, as by passing
          through a prism. See the Note under {Color}, n., 1.
      (b) A kind of firework which gives a brilliant white
          illumination for signals, etc.

   {White lime}, a solution or preparation of lime for
      whitewashing; whitewash.

   {White line} (Print.), a void space of the breadth of a line,
      on a printed page; a blank line.

   {White meat}.
      (a) Any light-colored flesh, especially of poultry.
      (b) Food made from milk or eggs, as butter, cheese, etc.

                Driving their cattle continually with them, and
                feeding only upon their milk and white meats.
                                                  --Spenser.

   {White merganser} (Zo["o]l.), the smew.

   {White metal}.
      (a) Any one of several white alloys, as pewter, britannia,
          etc.
      (b) (Metal.) A fine grade of copper sulphide obtained at a
          certain stage in copper smelting.

   {White miller}. (Zo["o]l.)
      (a) The common clothes moth.
      (b) A common American bombycid moth ({Spilosoma
          Virginica}) which is pure white with a few small black
          spots; -- called also {ermine moth}, and {virgin
          moth}. See {Woolly bear}, under {Woolly}.

   {White money}, silver money.

   {White mouse} (Zo["o]l.), the albino variety of the common
      mouse.

   {White mullet} (Zo["o]l.), a silvery mullet ({Mugil curema})
      ranging from the coast of the United States to Brazil; --
      called also {blue-back mullet}, and {liza}.

   {White nun} (Zo["o]l.), the smew; -- so called from the white
      crest and the band of black feathers on the back of its
      head, which give the appearance of a hood.

   {White oak}. (Bot.) See under {Oak}.

   {White owl}. (Zo["o]l.)
      (a) The snowy owl.
      (b) The barn owl.

   {White partridge} (Zo["o]l.), the white ptarmigan.

   {White perch}. (Zo["o]l.)
      (a) A North American fresh-water bass ({Morone Americana})
          valued as a food fish.
      (b) The croaker, or fresh-water drum.
      (c) Any California surf fish.

   {White pine}. (Bot.) See the Note under {Pine}.

   {White poplar} (Bot.), a European tree ({Populus alba}) often
      cultivated as a shade tree in America; abele.

   {White poppy} (Bot.), the opium-yielding poppy. See {Poppy}.
      

   {White powder}, a kind of gunpowder formerly believed to
      exist, and to have the power of exploding without noise.
      [Obs.]

            A pistol charged with white powder.   --Beau. & Fl.

   {White precipitate}. (Old Chem.) See under {Precipitate}.

   {White rabbit}. (Zo["o]l.)
      (a) The American northern hare in its winter pelage.
      (b) An albino rabbit.

   {White rent},
      (a) (Eng. Law) Formerly, rent payable in silver; --
          opposed to black rent. See {Blackmail}, n., 3.
      (b) A rent, or duty, of eight pence, payable yearly by
          every tinner in Devon and Cornwall to the Duke of
          Cornwall, as lord of the soil. [Prov. Eng.]

   {White rhinoceros}. (Zo["o]l.)
      (a) The one-horned, or Indian, rhinoceros ({Rhinoceros
          Indicus}). See {Rhinoceros}.
      (b) The umhofo.

   {White ribbon}, the distinctive badge of certain
      organizations for the promotion of temperance or of moral
      purity; as, the White-ribbon Army.

   {White rope} (Naut.), untarred hemp rope.

   {White rot}. (Bot.)
      (a) Either of several plants, as marsh pennywort and
          butterwort, which were thought to produce the disease
          called rot in sheep.
      (b) A disease of grapes. See {White rot}, under {Rot}.

   {White sage} (Bot.), a white, woolly undershrub ({Eurotia
      lanata}) of Western North America; -- called also {winter
      fat}.

   {White salmon} (Zo["o]l.), the silver salmon.

   {White salt}, salt dried and calcined; decrepitated salt.

   {White scale} (Zo["o]l.), a scale insect ({Aspidiotus Nerii})
      injurious to the orange tree. See {Orange scale}, under
      {Orange}.

   {White shark} (Zo["o]l.), a species of man-eating shark. See
      under {Shark}.

   {White softening}. (Med.) See {Softening of the brain}, under
      {Softening}.

   {White spruce}. (Bot.) See {Spruce}, n., 1.

   {White squall} (Naut.), a sudden gust of wind, or furious
      blow, which comes up without being marked in its approach
      otherwise than by whitecaps, or white, broken water, on
      the surface of the sea.

   {White staff}, the badge of the lord high treasurer of
      England. --Macaulay.

   {White stork} (Zo["o]l.), the common European stork.

   {White sturgeon}. (Zo["o]l.) See {Shovelnose}
      (d) .

   {White sucker}. (Zo["o]l.)
      (a) The common sucker.
      (b) The common red horse ({Moxostoma macrolepidotum}).

   {White swelling} (Med.), a chronic swelling of the knee,
      produced by a strumous inflammation of the synovial
      membranes of the kneejoint and of the cancellar texture of
      the end of the bone forming the kneejoint; -- applied also
      to a lingering chronic swelling of almost any kind.

   {White tombac}. See {Tombac}.

   {White trout} (Zo["o]l.), the white weakfish, or silver
      squeteague ({Cynoscion nothus}), of the Southern United
      States.

   {White vitriol} (Chem.), hydrous sulphate of zinc. See {White
      vitriol}, under {Vitriol}.

   {White wagtail} (Zo["o]l.), the common, or pied, wagtail.

   {White wax}, beeswax rendered white by bleaching.

   {White whale} (Zo["o]l.), the beluga.

   {White widgeon} (Zo["o]l.), the smew.

   {White wine}. any wine of a clear, transparent color,
      bordering on white, as Madeira, sherry, Lisbon, etc.; --
      distinguished from wines of a deep red color, as port and
      Burgundy. ``White wine of Lepe.'' --Chaucer.

   {White witch}, a witch or wizard whose supernatural powers
      are supposed to be exercised for good and beneficent
      purposes. --Addison. --Cotton Mather.

   {White wolf}. (Zo["o]l.)
      (a) A light-colored wolf ({Canis laniger}) native of
          Thibet; -- called also {chanco}, {golden wolf}, and
          {Thibetan wolf}.
      (b) The albino variety of the gray wolf.

   {White wren} (Zo["o]l.), the willow warbler; -- so called
      from the color of the under parts.

资料来源 : WordNet®

white lead
     n : a poisonous lead-containing white pigment [syn: {lead
         carbonate}]