chalk /ˈʧɔk/
 粉筆,白堊(vt.)用粉筆寫,記錄


 chalk /ˈʧɔk/ 名詞
 白堊,粉筆,用白粉擦,用粉筆寫,達到,得到


 Chalk n.
 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.


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

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 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
      v : write, draw, or trace with chalk