un chalked


a soft, white, powdery limestone consisting chiefly of fossil shells of foraminifers.
a prepared piece of chalk or chalklike substance for marking, as a blackboard crayon.
a mark made with chalk.
a score or tally.
verb (used with object)
to mark or write with chalk.
to rub over or whiten with chalk.
to treat or mix with chalk: to chalk a billiard cue.
to make pale; blanch: Terror chalked her face.
verb (used without object)
(of paint) to powder from weathering.
of, made of, or drawn with chalk.
Verb phrases
chalk up,
to score or earn: They chalked up two runs in the first inning.
to charge or ascribe to: It was a poor performance, but may be chalked up to lack of practice.

before 900; Middle English chalke, Old English cealc < Latin calc- (stem of calx) lime

chalklike, adjective
unchalked, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
chalk (tʃɔːk)
1.  a soft fine-grained white sedimentary rock consisting of nearly pure calcium carbonate, containing minute fossil fragments of marine organisms, usually without a cementing material
2.  a piece of chalk or a substance like chalk, often coloured, used for writing and drawing on a blackboard
3.  a line, mark, etc made with chalk
4.  billiards, snooker a small cube of prepared chalk or similar substance for rubbing the tip of a cue
5.  (Brit) a score, tally, or record
6.  informal as alike as chalk and cheese, as different as chalk and cheese totally different in essentials
7.  informal (Brit) by a long chalk by far
8.  can't tell chalk from cheese, doesn't know chalk from cheese to be unable to judge or appreciate important differences
9.  informal (Brit) not by a long chalk by no means; not possibly
10.  (modifier) made of chalk
11.  to draw or mark (something) with chalk
12.  (tr) to mark, rub, or whiten with or as if with chalk
13.  (intr) (of paint) to become chalky; powder
14.  (tr) to spread chalk on (land) as a fertilizer
[Old English cealc, from Latin calx limestone, from Greek khalix pebble]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

O.E. cealc, a W.Gmc. borrowing from L. calx (2) "limestone, lime (crushed limestone), small stone," from Gk. khalix "small pebble," which many connect to a PIE root for "split, break up." In most Germanic languages still with the "limestone" sense, but in English transferred to the opaque, white, soft
limestone found abundantly in the south of the island.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
chalk   (chôk)  Pronunciation Key 
A soft, white, gray, or yellow limestone consisting mainly of calcium carbonate and formed primarily from the accumulation of fossil microorganisms such as foraminifera and calcareous algae. Chalk is used in making lime, cement, and fertilizers, and as a whitening pigment in ceramics, paints, and cosmetics. The chalk used in classrooms is usually artificial.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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