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List of 13-letter words containing

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There are 19 thirteen-letter words containing H, K and 2O

ARRHENOTOKIESARRHENOTOKY n. giving birth only to boys.
BOOKISHNESSESBOOKISHNESS n. the state of being bookish.
BUTTONHOOKINGbuttonhooking v. Present participle of buttonhook.
BUTTONHOOK v. to make a kind of offensive play in American football.
CHECKERBLOOMScheckerblooms n. Plural of checkerbloom.
CHECKERBLOOM n. a Californian malvaceous plant with pink or purple flowers.
COCKTHROWINGScock␣throwings n. Plural of cock throwing.
COCKTHROWING n. the old sport of throwing sticks at a cock.
ELECTROSHOCKSelectroshocks n. Plural of electroshock.
electroshocks v. Third-person singular simple present indicative form of electroshock.
ELECTROSHOCK n. an electric shock.
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.
ORTHOPINAKOIDORTHOPINAKOID n. in monoclinic crystals, a form consisting of two faces parallel to the orthodiagonal and the vertical axis.
PHOSPHOKINASEphosphokinase n. (Biochemistry) kinase.
PHOSPHOKINASE n. a kind of enzyme, aka kinase.
PHYTOPLANKTONphytoplankton n. Plankton, especially those small in size, that obtain energy by photosynthesis.
PHYTOPLANKTON n. vegetable plankton, that includes diatoms, desmids, and dinoflagellates.
POIKILOTHERMSpoikilotherms n. Plural of poikilotherm.
POIKILOTHERM n. an organism that takes on the temperature of its surroundings.
POIKILOTHERMYpoikilothermy n. (Biology) The quality of having a body temperature that varies or fluctuates, depending on the temperature…
POIKILOTHERMY n. the state of being cold-blooded, also POIKILOTHERMISM.
ROCKHOUNDINGSROCKHOUNDING n. of a rock-collector, looking for rocks.
SKEUOMORPHISMskeuomorphism n. The incorporation of obsolete or skeuomorphic elements into a design, for familiarity or out of tradition…
SKEUOMORPHISM n. the state of being a skeuomorph.
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: 385 words
  • Scrabble in French: 9 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: 2 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 2 words


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