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List of 12-letter words containing

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There are 6 twelve-letter words containing A, E, H, K, O, R and Y

HETEROKARYONheterokaryon n. (Biology) A cell having two or more genetically different nuclei.
HETEROKARYON n. a cell, as in the mycelium of a fungus, that contains two or more genetically unlike nuclei.
HOLIDAYMAKERholidaymaker n. (Britain) someone who is on holiday.
holiday-maker n. (Britain) Someone who is on holiday.
HOLIDAYMAKER n. someone on holiday.
HYDROCRACKEDhydrocracked v. Simple past tense and past participle of hydrocrack.
hydrocracked adj. That has been subjected to hydrocracking.
HYDROCRACK v. to crack hydrocarbons in the presence of hydrogen.
HYDROCRACKERhydrocracker n. (Organic chemistry) A chemical engineering plant in which hydrocracking takes place.
HYDROCRACKER n. one engaged in hydrocracking.
KERATOPHYRESkeratophyres n. Plural of keratophyre.
KERATOPHYRE n. a fine-grained soda trachyte.
KYMOGRAPHIESkymographies n. Plural of kymography.
KYMOGRAPHY n. using a kymograph, an instrument for recording fluid pressure.

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: 53 words
  • Scrabble in French: 1 word
  • Scrabble in Spanish: no word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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