Chalk

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cal·ci·um car·bon·ate

an astringent, an antacid, and a calcium dietary supplement.
See also: calcite.
Synonym(s): chalk, creta
A regional term for any abuse substance consumed as a white powder, e.g., methamphetamine, amphetamine, cocaine

cal·ci·um car·bon·ate

(kalsē-ŭm kahrbŏ-nāt)
Astringent, antacid, and dietary supplement.
See also: calcite
Synonym(s): chalk.
References in classic literature ?
He quickly rubbed out what he had written, gave her the chalk, and stood up.
Dolly was completely comforted in the depression caused by her conversation with Alexey Alexandrovitch when she caught sight of the two figures: Kitty with the chalk in her hand, with a shy and happy smile looking upwards at Levin, and his handsome figure bending over the table with glowing eyes fastened one minute on the table and the next on her.
He snatched the chalk with nervous, trembling fingers, and breaking it, wrote the initial letters of the following phrase, "I have nothing to forget and to forgive; I have never ceased to love you."
She understood it all, and without asking him, "Is it this?" took the chalk and at once answered.
When Cecily had finished and had thrown down the chalk with bitter vehemence, he turned around with a very red face.
Edgware had been a scene of confusion, Chalk Farm a riotous tumult, but this was a whole population in movement.
For instance, the several species of the Chthamalinae (a sub-family of sessile cirripedes) coat the rocks all over the world in infinite numbers: they are all strictly littoral, with the exception of a single Mediterranean species, which inhabits deep water and has been found fossil in Sicily, whereas not one other species has hitherto been found in any tertiary formation: yet it is now known that the genus Chthamalus existed during the chalk period.
4 Once dry, use the chalks to decorate, then fill with goodies.
CD 700 MB, CD RW, DVD 4.7 G.B., DVD RW, DVD R, CD cover, Register 100 pgs.2 quire, Register 200 pgs.3 quire, Register 400 pgs.6 quire, Students LaboratoryAttendence register 500 pgs, Staff attenence register 200 pg, Note book 100 pgs., Note book 200 pgs., Duplicate book no.2, Triplicate bookNo.2, White chalks, Red color chalks, Yellow color chalks, White non dust chalks, Color non dust chalks,
There isn't any color that I haven't done so far and this is why I was attracted to try hair chalks," said Ashwag Mohammed, a stay-at-home mother.
Make heads turn with the hero of the collection, the limited-edition Hair Chalks. Available in two hair-raising shades: Tickle Me Pink, a playful pink that pops on light-colored hair and Falling For Blue, a bright blue that's electric on brunettes.
The Food and Drug Administration (FDA) has expressed concern over the safety of washable hair chalks being used as hair dye.