chalk
n. சீமைச் சுண்ணாம்பு, வெண்சுதைப்பாறை, சுண்ணக் காம்பு, சுண்ண எழுதுகோல், வண்ண ஓவியக்கோல், (வி.) சுண்ணக்கோல் எழுது, குறியிடு, வரைதிட்டம் இடு, சுண்ணமிட்டுத் தேய்த்துத் துலக்கு, சுண்ண உரமிடு.
Chalk, n. Etym: [AS. cealc lime, from L. calx limestone. See Calz, and Cawk.] 1. (Min.) Defn: 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) Defn: 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. 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.