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There are 17 twelve-letter words containing I, 2O, R, S, 2T and Y

ATHROCYTOSISathrocytosis n. The absorption of foreign material in the cytoplasm of some cells.
ATHROCYTOSIS n. of a cell, having the ability to absorb and store foreign matter.
BLOODTHIRSTYbloodthirsty adj. Thirsty for blood: inexorably violent or eager for bloodshed; murderous.
bloodthirsty adj. Of a book, film, etc.: depicting much violence; gory, violent.
bloodthirsty adj. (Humorous) Of a mosquito, tenaciously seeking to draw blood.
CRYPTOBIONTScryptobionts n. Plural of cryptobiont.
CRYPTOBIONT n. any organism that exhibits cryptobiosis.
CRYPTOLOGISTcryptologist n. One who studies cryptology.
CRYPTOLOGIST n. a student of cryptology, the scientific study of codes.
CRYPTOZOITEScryptozoites n. Plural of cryptozoite.
CRYPTOZOITE n. a malarial parasite at the stage of development in its host before it enters the red blood cells.
EPISTOLATORYepistolatory adj. Synonym of epistolary.
EPISTOLATORY adj. of the nature of an epistle.
ETHNOHISTORYethnohistory n. The history of an indigenous people.
ETHNOHISTORY n. a study of the development of cultures.
FORTUITOUSLYfortuitously adv. In a fortuitous manner; in a manner of happening by chance; coincidentally; accidentally.
fortuitously adv. (Sometimes proscribed) In a fortuitous manner; in a manner of happening by a lucky chance; luckily; fortunately.
FORTUITOUS adv. occurring by chance.
HYPEROSTOTIChyperostotic adj. Exhibiting or relating to hyperostosis.
HYPEROSTOTIC adj. relating to hyperostosis, abnormal growth of bone tissue.
MONSTRUOSITYmonstruosity n. Obsolete form of monstrosity.
MONSTRUOSITY n. (obsolete) monstrosity.
MOTORCYCLISTmotorcyclist n. Someone who rides a motorcycle.
MOTORCYCLIST n. one who rides a motorcycle.
POSTERIORITYposteriority n. The condition of being posterior (in any sense).
POSTERIORITY n. the state of being later or subsequent.
PROTISTOLOGYprotistology n. (Biology) The scientific study of protists.
PROTISTOLOGY n. the study of protists.
PROTOHISTORYprotohistory n. The period between prehistory and history, during which a culture or civilization has not yet developed…
PROTOHISTORY n. the study of human beings in the times that immediately antedate recorded history.
THYROTROPINSthyrotropins n. Plural of thyrotropin.
THYROTROPIN n. a hormone, produced in the anterior lobe of the pituitary gland, which stimulates the thyroid, also THYROTROPHIN.
TRAITOROUSLYtraitorously adv. In a traitorous manner; treacherously.
TRAITOROUS adv. guilty or capable of treason.
TROGLODYTISMtroglodytism n. The practice of living in caves or cavelike environments.
troglodytism n. (Derogatory) The state or quality of being considered coarse, ignorant, uncultured, or unprogressive.
TROGLODYTISM n. the practice of living in caves.

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: 64 words
  • Scrabble in French: 6 words
  • Scrabble in Spanish: 1 word
  • Scrabble in Italian: 1 word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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