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List of 13-letter words containing

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There are 17 thirteen-letter words containing K, O, R and Y

CRYOPLANKTONSCRYOPLANKTON n. minute organisms, esp. algae, living in ice, snow, or icy water.
FOREKNOWINGLYforeknowingly adv. With foreknowledge.
FOREKNOWING adv. FOREKNOW, to know beforehand.
HEARTBROKENLYheartbrokenly adv. In a heartbroken manner.
HEARTBROKEN adv. having a broken heart.
HETEROKARYONSheterokaryons n. Plural of heterokaryon.
HETEROKARYON n. a cell, as in the mycelium of a fungus, that contains two or more genetically unlike nuclei.
HOLIDAYMAKERSholidaymakers n. Plural of holidaymaker.
holiday-makers n. Plural of holiday-maker.
HOLIDAYMAKER n. someone on holiday.
HYDROCRACKERShydrocrackers n. Plural of hydrocracker.
HYDROCRACKER n. one engaged in hydrocracking.
HYDROCRACKINGhydrocracking n. (Organic chemistry) the production of high-octane petroleum fuel and kerosene by hydrogenating large…
hydrocracking v. Present participle of hydrocrack.
HYDROCRACKING n. the process of cracking hydrocarbons in the presence of hydrogen.
HYDROKINETICShydrokinetics n. (Physics) The branch of physics concerned with the movement of fluids.
HYDROKINETICS n. the study of the motion of fluids.
KARYOMAPPINGSKARYOMAPPING n. a technique for determining whether an embryo has inherited a genetic defect by analysing DNA taken from it and its close relatives.
MEGAKARYOCYTEmegakaryocyte n. (Anatomy) A large cell, found in bone marrow, responsible for the production of platelets.
MEGAKARYOCYTE n. a large cell with a lobulated nucleus, found esp. in the bone marrow, the source of blood platelets.
MOUNTEBANKERYmountebankery n. The practices of a mountebank; quackery; boastful and vain pretenses.
MOUNTEBANKERY n. the activities of a mountebank.
PHYTOPLANKTERphytoplankter n. A single phytoplankton organism.
PHYTOPLANKTER n. a planktonic plant.
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.
REKEYBOARDINGrekeyboarding v. Present participle of rekeyboard.
REKEYBOARD v. to enter again on a keyboard.
SHOCKUMENTARYshockumentary n. A form of documentary used to generate a reactionary effect in an audience; especially such a documentary…
SHOCKUMENTARY n. a documentary intended to shock.
THANKWORTHILYTHANKWORTHY adv. worthy of thanks.
UNWORKABILITYunworkability n. The quality or state of being unworkable, lack of workability.
unworkability n. An unworkable aspect or element.
UNWORKABILITY n. the quality of being unworkable.

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 WikWik.org and 1Word.ws.

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See this list for:

  • English Wiktionary: 353 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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