Cheeks of a block

Cheek \Cheek\ (ch[=e]k), n. [OE. cheke, cheoke, AS. ce[`a]ce,
   ce[`o]ce; cf. Goth. kukjan to kiss, D. kaak cheek; perh. akin
   to E. chew, jaw.]
   1. The side of the face below the eye.
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   2. The cheek bone. [Obs.] --Caucer.
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   3. pl. (Mech.) Those pieces of a machine, or of any timber,
      or stone work, which form corresponding sides, or which
      are similar and in pair; as, the cheeks (jaws) of a vise;
      the cheeks of a gun carriage, etc.
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   4. pl. The branches of a bridle bit. --Knight.
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   5. (Founding) A section of a flask, so made that it can be
      moved laterally, to permit the removal of the pattern from
      the mold; the middle part of a flask.
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   6. Cool confidence; assurance; impudence. [Slang]
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   {Cheek of beef}. See Illust. of {Beef}.

   {Cheek bone} (Anat.) the bone of the side of the face; esp.,
      the malar bone.

   {Cheek by jowl}, side by side; very intimate.

   {Cheek pouch} (Zool.), a sacklike dilation of the cheeks of
      certain monkeys and rodents, used for holding food.

   {Cheeks of a block}, the two sides of the shell of a tackle
      block.

   {Cheeks of a mast}, the projection on each side of a mast,
      upon which the trestletrees rest.

   {Cheek tooth} (Anat.), a hinder or molar tooth.

   {Butment cheek}. See under {Butment}.
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