资料来源 : pyDict

粉笔,白垩用粉笔写,记录

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

Chalk \Chalk\, v. t. [imp. & p. p. {Chalked}; p. pr. & vb. n.
   {Chalking}.]
   1. To rub or mark with chalk.

   2. To manure with chalk, as land. --Morimer.

   3. To make white, as with chalk; to make pale; to bleach.
      --Tennyson.

            Let a bleak paleness chalk the door.  --Herbert.

   {To chalk out}, to sketch with, or as with, chalk; to
      outline; to indicate; to plan. [Colloq.] ``I shall pursue
      the plan I have chalked out.'' --Burke.

Chalk \Chalk\, n. [AS. cealc lime, from L. calx limestone. See
   {Calz}, and {Cawk}.]
   1. (Min.) A soft, earthy substance, of a white, grayish, or
      yellowish white color, consisting of calcium carbonate,
      and having the same composition as common limestone.

   2. (Fine Arts) Finely prepared chalk, used as a drawing
      implement; also, by extension, a compound, as of clay and
      black lead, or the like, used in the same manner. See
      {Crayon}.

   {Black chalk}, a mineral of a bluish color, of a slaty
      texture, and soiling the fingers when handled; a variety
      of argillaceous slate.

   {By a long chalk}, by a long way; by many degrees. [Slang]
      --Lowell.

   {Chalk drawing} (Fine Arts), a drawing made with crayons. See
      {Crayon}.

   {Chalk formation}. See {Cretaceous formation}, under
      {Cretaceous}.

   {Chalk line}, a cord rubbed with chalk, used for making
      straight lines on boards or other material, as a guide in
      cutting or in arranging work.

   {Chalk mixture}, a preparation of chalk, cinnamon, and sugar
      in gum water, much used in diarrheal affection, esp. of
      infants.

   {Chalk period}. (Geol.) See {Cretaceous period}, under
      {Cretaceous}.

   {Chalk pit}, a pit in which chalk is dug.

   {Drawing chalk}. See {Crayon}, n., 1.

   {French chalk}, steatite or soapstone, a soft magnesian
      mineral.

   {Red chalk}, an indurated clayey ocher containing iron, and
      used by painters and artificers; reddle.

资料来源 : WordNet®

chalk
     v : write, draw, or trace with chalk

chalk
     n 1: a soft whitish calcite
     2: a pure flat white with little reflectance
     3: amphetamine used in the form of a crystalline hydrochloride;
        used as a stimulant to the nervous system and as an
        appetite suppressant [syn: {methamphetamine}, {methamphetamine
        hydrochloride}, {Methedrine}, {meth}, {deoxyephedrine}, {chicken
        feed}, {crank}, {glass}, {ice}, {shabu}, {trash}]
     4: a piece of chalk (or similar substance) used for writing on
        blackboards or other surfaces