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List of 13-letter words containing

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There are 7 thirteen-letter words containing A, K, N, 2O, R and S

AEROPLANKTONSAEROPLANKTON n. minute organisms carried in the air.
ARRHENOTOKIESARRHENOTOKY n. giving birth only to boys.
CRYOPLANKTONSCRYOPLANKTON n. minute organisms, esp. algae, living in ice, snow, or icy water.
HETEROKARYONSheterokaryons n. Plural of heterokaryon.
HETEROKARYON n. a cell, as in the mycelium of a fungus, that contains two or more genetically unlike nuclei.
MEROPLANKTONSmeroplanktons n. Plural of meroplankton.
MEROPLANKTON n. plankton consisting of certain larvae that do not spend all their life as plankton.
SCRAPBOOKINGSSCRAPBOOKING n. the practice of keeping cuttings.
THROMBOKINASEthrombokinase n. (Biochemistry) A proteolytic enzyme that converts prothrombin into thrombin during the clotting of blood.
THROMBOKINASE n. an enzyme active in the clotting of blood, aka thromboplastin.

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: 112 words
  • Scrabble in French: 8 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: 2 words
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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