Brick dust

from The Collaborative International Dictionary of English v.0.48
Brick \Brick\ (br[i^]k), n. [OE. brik, F. brique; of Ger.
   origin; cf. AS. brice a breaking, fragment, Prov. E. brique
   piece, brique de pain, equiv. to AS. hl[=a]fes brice, fr. the
   root of E. break. See {Break}.]
   1. A block or clay tempered with water, sand, etc., molded
      into a regular form, usually rectangular, and sun-dried,
      or burnt in a kiln, or in a heap or stack called a clamp.
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            The Assyrians appear to have made much less use of
            bricks baked in the furnace than the Babylonians.
                                                  --Layard.
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   2. Bricks, collectively, as designating that kind of
      material; as, a load of brick; a thousand of brick.
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            Some of Palladio's finest examples are of brick.
                                                  --Weale.
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   3. Any oblong rectangular mass; as, a brick of maple sugar; a
      penny brick (of bread).
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   4. A good fellow; a merry person; as, you 're a brick.
      [Slang] "He 's a dear little brick." --Thackeray.
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   {To have a brick in one's hat}, to be drunk. [Slang]
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   Note: Brick is used adjectively or in combination; as, brick
         wall; brick clay; brick color; brick red.
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   {Brick clay}, clay suitable for, or used in making, bricks.
      

   {Brick dust}, dust of pounded or broken bricks.

   {Brick earth}, clay or earth suitable for, or used in making,
      bricks.

   {Brick loaf}, a loaf of bread somewhat resembling a brick in
      shape.

   {Brick nogging} (Arch.), rough brickwork used to fill in the
      spaces between the uprights of a wooden partition; brick
      filling.

   {Brick tea}, tea leaves and young shoots, or refuse tea,
      steamed or mixed with fat, etc., and pressed into the form
      of bricks. It is used in Northern and Central Asia. --S.
      W. Williams.

   {Brick trimmer} (Arch.), a brick arch under a hearth, usually
      within the thickness of a wooden floor, to guard against
      accidents by fire.

   {Brick trowel}. See {Trowel}.

   {Brick works}, a place where bricks are made.

   {Bath brick}. See under {Bath}, a city.

   {Pressed brick}, bricks which, before burning, have been
      subjected to pressure, to free them from the imperfections
      of shape and texture which are common in molded bricks.
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