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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 summation

1 definition found

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

  summation
      n 1: a concluding summary (as in presenting a case before a law
           court) [syn: {summation}, {summing up}, {rundown}]
      2: (physiology) the process whereby multiple stimuli can produce
         a response (in a muscle or nerve or other part) that one
         stimulus alone does not produce
      3: the final aggregate; "the sum of all our troubles did not
         equal the misery they suffered" [syn: {sum}, {summation},
         {sum total}]
      4: the arithmetic operation of summing; calculating the sum of
         two or more numbers; "the summation of four and three gives
         seven"; "four plus three equals seven" [syn: {summation},
         {addition}, {plus}]

Source : WordNet ® Princeton University. 2010.

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OCTWL / TWL : The official dictionary for scrabble game in United States, Canada and Thailand.
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