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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.

chalk,

n an abrasive agent made from compact calcite.
References in periodicals archive ?
The Readi-write product comes in two-roll packs of either chalkboard, dry erase memo board, or a combo pack of one roll of each.
Surveys commissioned by Chalkboard and other groups had revealed misperceptions about how schools spend their money.
Chalkboard agrees, and is pushing hard for mandatory reviews of school business practices - because we think there are best business practices to be shared.
The ICS/Global Chalkboard unlocks the Internet's potential, but more importantly, enables educators to unlock the learning potential of every student at every level," said Cirasole.
The Chalkboard Project found that Oregon's school system needs more financial support, and that spending additional funds on the lowest grades would do the most good.
Plus, with the system's new look, to be introduced on June 1, Altra's Chalkboard will be cleaner, faster and more user-friendly.
The Chalkboard Project considered those ideas in light of research and public opinion.
The Right Angle and Chalkboard interface is expected to be operational by mid-1999.
The new color-coded chalkboard makes it simple to identify delivery status or to group patients by physician.
The Chalkboard Project, a nonprofit organization focused on improving Oregon schools, floated several new proposals last week dealing with teacher quality, school funding and early reading.
Written below the pregame warmups schedule on Xtreme's locker-room chalkboard was the figure $2,500 - the per-player bonus for winning an XFL game.
The old saying in air combat training was 'that the first person to the chalkboard wins the fight.