chalk
(chôk)n.1. A soft compact calcite, CaCO3, with varying amounts of silica, quartz, feldspar, or other mineral impurities, generally gray-white or yellow-white and derived chiefly from fossil seashells.
2. a. A piece of chalk or chalklike substance in crayon form, used for marking on a blackboard or other surface.
b. Games A small cube of chalk used in rubbing the tip of a billiard or pool cue to increase its friction with the cue ball.
3. A mark made with chalk.
4. Chiefly British A score or tally.
tr.v. chalked,
chalk·ing,
chalks 1. To mark, draw, or write with chalk: chalked my name on the blackboard.
2. To rub or cover with chalk, as the tip of a billiard cue.
3. To make pale; whiten.
4. To treat (soil, for example) with chalk.
Phrasal Verb: chalk up1. To earn or score: chalk up points.
2. To credit or ascribe: Chalk that up to experience.
[Middle English, from Old English cealk, from Latin calx, calc-, lime; see calx.]
chalk′i·ness n.
chalk′y adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
chalk
(tʃɔːk) n1. (Geological Science) 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) 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. as alike as chalk and cheese as different as chalk and cheese informal totally different in essentials
7. by a long chalk informal Brit 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. not by a long chalk informal Brit by no means; not possibly
10. (modifier) made of chalk
vb11. to draw or mark (something) with chalk
12. (tr) to mark, rub, or whiten with or as if with chalk
13. (Building) (intr) (of paint) to become chalky; powder
14. (Agriculture) (tr) to spread chalk on (land) as a fertilizer
[Old English cealc, from Latin calx limestone, from Greek khalix pebble]
ˈchalkˌlike adj
ˈchalky adj
ˈchalkiness n
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
chalk
(tʃɔk)
n. 1. a soft, white, powdery limestone consisting chiefly of fossil shells of foraminifers.
2. a piece of chalk or chalklike substance for marking, as a blackboard crayon.
3. a mark made with chalk.
4. a score or tally.
v.t. 5. to mark with chalk.
6. to rub over or whiten with chalk.
v.i. 7. (of paint) to powder from weathering.
8. chalk up, a. to score or earn, as points in a game.
b. to attribute.
[before 900; Middle English chalke, Old English
cealc < Latin
calc-, calx lime; see
calcium]
chalk′y, adj. -i•er, -i•est.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
chalk
(chôk) A soft, white, gray, or yellow limestone formed primarily from fossil seashells and consisting mainly of calcium carbonate. Chalk is used in making lime, cement, and fertilizers, and as a whitening pigment in ceramics, paints, and cosmetics. The chalk used in classrooms, however, is usually artificial and not natural.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
chalk
1. A soft stone, similar to a very soft limestone, used for drawing. Crayon is powdered chalk mixed with wax or oil.
2. A white, soft form of limestone.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
Chalk
1. A pale, thin, whitish ale.
1001 Words and Phrases You Never Knew You Didn’t Know by W.R. Runyan Copyright © 2011 by W.R. Runyan