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There are 15 fifteen-letter words containing H, I, O, 2R, 2T and Y

BIOSTRATIGRAPHYbiostratigraphy n. (Biology, geology) The study of the stratigraphic distribution of fossils.
BIOSTRATIGRAPHY n. the determination of age, etc., of sedimentary strata from fossils which they contain.
CRYPTOGRAPHISTScryptographists n. Plural of cryptographist.
CRYPTOGRAPHIST n. one who studies cryptographs.
ERYTHROPOIETINSerythropoietins n. Plural of erythropoietin.
ERYTHROPOIETIN n. a glycoprotein hormone that stimulates the production of red blood cells by stem cells in bone marrow.
EXOERYTHROCYTICexoerythrocytic adj. Outside of an erythrocyte.
EXOERYTHROCYTIC adj. occurring outside the red blood cells.
HETEROCERCALITYheterocercality n. The quality of being heterocercal.
HETEROCERCALITY n. the state of being heterocercal, also HETEROCERCY.
HORTICULTURALLYhorticulturally adv. With respect to horticulture.
HORTICULTURAL adv. relating to horticulture.
HYDROTHERAPISTShydrotherapists n. Plural of hydrotherapist.
HYDROTHERAPIST n. a practitioner of hydrotherapy.
MICROPHOTOMETRYmicrophotometry n. Measurement performed with a microphotometer.
MICROPHOTOMETRY n. measurement by microphotometer, an instrument for measuring the amount of light transmitted or reflected by small areas or for measuring the relative densities of spectral lines on a photographic film or plate.
ORTHOPSYCHIATRYorthopsychiatry n. (Psychiatry) branch of psychiatry concerned with the prevention of mental illness, especially in the young.
ORTHOPSYCHIATRY n. preventive psychiatry for young people.
POLYARTHRITIDESpolyarthritides n. Plural of polyarthritis.
POLYARTHRITIS n. arthritis affecting several joints.
POLYARTHRITISESPOLYARTHRITIS n. arthritis affecting several joints.
PYRETOTHERAPIESPYRETOTHERAPY n. medical treatment by causing fever.
STEREOCHEMISTRYstereochemistry n. (Chemistry, uncountable) the branch of chemistry that involves the spatial arrangement of the atoms…
stereochemistry n. (Chemistry, countable) the effect of such spatial arrangement on the chemistry of a particular compound.
STEREOCHEMISTRY n. chemical study of arrangement of molecules and atoms.
THERMOCHEMISTRYthermochemistry n. (Chemistry, physics) The study of the thermodynamics of chemical reactions.
THERMOCHEMISTRY n. a branch of chemistry that deals with the interrelation of heat with chemical reaction or physical change of state.
UNTRUSTWORTHILYuntrustworthily adv. In an untrustworthy manner.
UNTRUSTWORTHY adv. not trustworthy.

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: 126 words
  • Scrabble in French: 15 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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