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List of 12-letter words containing

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There are 20 twelve-letter words containing E, 3O, T and Y

ASTROGEOLOGYastrogeology n. (Astronomy, geology) The science dealing with the structure and composition of planets and other bodies…
ASTROGEOLOGY n. the study of extraterrestrial geology.
COTYLEDONOIDCOTYLEDONOID adj. in the form of a cotyledon.
COTYLEDONOUScotyledonous adj. Of or pertaining to a cotyledon.
COTYLEDONOUS adj. relating to or having cotyledons, also COTYLEDONARY.
DEOXYCORTONEdeoxycortone n. (Pharmacology) UK form of desoxycortone.
DEOXYCORTONE n. a corticosteroid hormone important in maintaining sodium and water balance in the body.
ETHNOBIOLOGYethnobiology n. (Biology) The study of the relationships between plants and animals and human cultures.
ETHNOBIOLOGY n. the branch of biology involving the study of the traditional uses of plants and animals in various human societies.
ETYMOLOGICONetymologicon n. A book of etymologies.
ETYMOLOGICON n. an etymological dictionary, also ETYMOLOGICUM.
HOMOIOTHERMYhomoiothermy n. (Biology) Alternative form of homeothermy.
HOMOIOTHERMY n. the maintenance of a constant body temperature, also HOMEOTHERMISM, HOMEOTHERMY, HOMOTHERMY.
LEVOROTATORYlevorotatory adj. (Chemistry, of an optically active compound or crystal) That rotates the plane of polarized light to…
LEVOROTATORY adj. counterclockwise; rotating the plane of polarization of light to the left, also LAEVOROTATORY, LEVOROTARY.
LOCOMOTIVELYLOCOMOTIVE adv. moving from place to place.
NEOORTHODOXYNeoorthodoxy n. Alternative form of Neo-orthodoxy.
neo-orthodoxy n. (Christianity, theology) A theological movement developed in the aftermath of World War I, largely a…
Neo-orthodoxy n. Alternative letter-case form of neo-orthodoxy.
OOPHORECTOMYoophorectomy n. (Medicine) Surgical removal of one or both ovaries.
oöphorectomy n. Alternative spelling of oophorectomy.
OOPHORECTOMY n. the operation of removing one or both of the ovaries, aka ovariotomy.
ORYCTOLOGIESORYCTOLOGY n. (obsolete) mineralogy or paleontology.
PALEONTOLOGYpaleontology n. (American spelling) Study of the forms of life existing in prehistoric or geologic times, especially…
PALEONTOLOGY n. the study of fossils, also PALAEONTOLOGY.
PHOTOGEOLOGYphotogeology n. The use of aerial photography to interpret geologic features.
PHOTOGEOLOGY n. a branch of geology concerned with the identification and study of geological features through the study of aerial or orbital photographs.
PHOTOPOLYMERphotopolymer n. (Chemistry) Any polymer that reacts to light with a physical or chemical change, used especially for teeth fillings.
PHOTOPOLYMER n. a photosensitive plastic used esp. in the manufacture of printing plates.
PHYTOHORMONEphytohormone n. A plant hormone.
PHYTOHORMONE n. a plant hormone, regulating growth.
RONTGENOLOGYröntgenology n. Dated form of roentgenology.
RONTGENOLOGY n. the science of X-rays, also ROENTGENOLOGY.
SEROTAXONOMYSEROTAXONOMY n. serological analysis as a source of information for taxonomic classification.
STOECHIOLOGYstoechiology n. Alternative form of stoichiology.
stœchiology n. Scientific study of bodily elements.
stœchiology n. Treatise of physiological elements.
YOCTOSECONDSyoctoseconds n. Plural of yoctosecond.
YOCTOSECOND n. a very small unit of time.

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: 135 words
  • Scrabble in French: 11 words
  • Scrabble in Spanish: 5 words
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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