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There are 2 fifteen-letter words containing EFICIEN

DEFICIENTNESSESDEFICIENTNESS n. DEFICIENT, lacking.
IMMUNODEFICIENTimmunodeficient adj. Exhibiting immunodeficiency.
IMMUNODEFICIENT adj. relating to immunodeficiency, deficiency in immune response due to depletion or inactivity of lymphoid cells.

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.
Definitions are short excerpt from the 1Word.ws and WikWik.org.

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See this list for:

  • English Wiktionary: 7 words
  • Scrabble in French: 1 word
  • Scrabble in Spanish: no word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: 9 words


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