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List of 13-letter words containing

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There are 11 thirteen-letter words containing H, K, N, 2O and S

ARRHENOTOKIESARRHENOTOKY n. giving birth only to boys.
BOOKISHNESSESBOOKISHNESS n. the state of being bookish.
COCKTHROWINGScock␣throwings n. Plural of cock throwing.
COCKTHROWING n. the old sport of throwing sticks at a cock.
HETEROKARYONSheterokaryons n. Plural of heterokaryon.
HETEROKARYON n. a cell, as in the mycelium of a fungus, that contains two or more genetically unlike nuclei.
HOLOPLANKTONSHOLOPLANKTON n. organisms which remain as plankton throughout their whole life cycle.
KALEIDOPHONESkaleidophones n. Plural of kaleidophone.
KALEIDOPHONE n. an instrument for demonstrating sound waves by lines of light.
PHOSPHOKINASEphosphokinase n. (Biochemistry) kinase.
PHOSPHOKINASE n. a kind of enzyme, aka kinase.
ROCKHOUNDINGSROCKHOUNDING n. of a rock-collector, looking for rocks.
STOCKHOLDINGSstockholdings n. Plural of stockholding.
STOCKHOLDING n. a holding of stock.
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.
UNLIKELIHOODSunlikelihoods n. Plural of unlikelihood.
UNLIKELIHOOD n. the state of being unlikely.

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: 135 words
  • Scrabble in French: 4 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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