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slat (slăt)

[Middle English sclat, from Old French esclat, splinter, probably of Germanic origin.]

noun 

  1. A narrow strip of metal or wood, as in a Venetian blind.
  2. A movable auxiliary airfoil running along the leading edge of the wing of an airplane.
  3. Slang The ribs.

transitive verb: slat·ted, slat·ting, slats. 

To provide or make with slats: slatting the back of a chair.