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List of 13-letter words containing

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There are 8 thirteen-letter words containing H, I, K, 2O and R

ARRHENOTOKIESARRHENOTOKY n. giving birth only to boys.
COCKTHROWINGScock␣throwings n. Plural of cock throwing.
COCKTHROWING n. the old sport of throwing sticks at a cock.
ORTHOPINAKOIDORTHOPINAKOID n. in monoclinic crystals, a form consisting of two faces parallel to the orthodiagonal and the vertical axis.
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.
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: 98 words
  • Scrabble in French: 4 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: 1 word
  • Scrabble in German: no word
  • Scrabble in Romanian: 2 words


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