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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 cistron

1 definition found

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

  cistron
      n 1: (genetics) a segment of DNA that is involved in producing a
           polypeptide chain; it can include regions preceding and
           following the coding DNA as well as introns between the
           exons; it is considered a unit of heredity; "genes were
           formerly called factors" [syn: {gene}, {cistron}, {factor}]

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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