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Valid in these dictionaries

TWL/NWL (Scrabble US/CA/TH)
SOWPODS/CSW (Scrabble UK / ALL)
ENABLE (Words with Friends)

Meaning of occlusion

1 definition found

From WordNet (r) 3.0 (2006) [wn]:

  occlusion
      n 1: closure or blockage (as of a blood vessel)
      2: (meteorology) a composite front when colder air surrounds a
         mass of warm air and forces it aloft [syn: {occluded front},
         {occlusion}]
      3: (dentistry) the normal spatial relation of the teeth when the
         jaws are closed
      4: an obstruction in a pipe or tube; "we had to call a plumber
         to clear out the blockage in the drainpipe" [syn: {blockage},
         {block}, {closure}, {occlusion}, {stop}, {stoppage}]
      5: the act of blocking [syn: {blockage}, {closure}, {occlusion}]

Source : WordNet ® Princeton University. 2010.

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OCTWL / TWL : The official dictionary for scrabble game in United States, Canada and Thailand.
SOWPODS / CSW : UK and the rest of the world uses this dictionary for various word games including scrabble.
ENABLE - This is the default dictionary for Words with Friends.

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