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List of 13-letter words containing

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There are 20 thirteen-letter words containing A, H, I, 2O, R, T and Y

AEROLITHOLOGYaerolithology n. The study of meteorites.
AEROLITHOLOGY n. the study of aerolites.
AUTOBIOGRAPHYautobiography n. (Countable) A self-written biography; the story of one’s own life.
autobiography n. (Uncountable) Biographies of this kind regarded as a literary genre.
AUTOBIOGRAPHY n. the biography of a person narrated by himself or herself.
CHROMATOLYSISchromatolysis n. The dissolution of the Nissl bodies in the cell body of a neuron.
CHROMATOLYSIS n. the dissolution and breaking up of chromophil material (as chromatin) of a cell and esp. a nerve cell.
CHROMATOLYTICchromatolytic adj. Relating to chromatolysis.
CHROMATOLYTIC adj. relating to chromatolysis.
DIAPHOTOTROPYDIAPHOTOTROPY n. the state of being diaphototropic, turning transversely to the light.
ENANTIOMORPHYenantiomorphy n. The condition of being enantiomorphic.
ENANTIOMORPHY n. the state of being an enantiomorph, an object which is the mirror image of another.
ERYTHROPHOBIAerythrophobia n. Abnormal and persistent fear of blushing.
erythrophobia n. Abnormal and persistent fear of the colour red.
ERYTHROPHOBIA n. an aversion to the color red; an extreme fear of blushing.
HONOURABILITYhonourability n. A state or condition or being honourable.
HONOURABILITY n. the quality of being honourable, also HONORABILITY.
HORIZONTALITYhorizontality n. Horizontalness.
HORIZONTALITY n. the state of being horizontal.
HYDROGENATIONhydrogenation n. (Chemistry) The chemical reaction of hydrogen with another substance, especially with an unsaturated…
HYDROGENATION n. the act of hydrogenating.
HYDROLYSATIONhydrolysation n. Alternative form of hydrolyzation.
HYDROLYSATION n. the process of hydrolysing, also HYDROLYZATION.
HYDROLYZATIONhydrolyzation n. (Chemistry) The act of hydrolyzing.
HYDROLYZATION n. the process of hydrolyzing, also HYDROLYSATION.
HYDROTHORACIChydrothoracic adj. Relating to hydrothorax.
HYDROTHORACIC adj. of or like hydrothorax, water liquid in the pleural cavity.
HYDROXYLATIONhydroxylation n. (Organic chemistry) The introduction of a hydroxyl group into a molecule, especially by the replacement…
HYDROXYLATION n. the act of hydroxylating.
OPISTHOGRAPHYopisthography n. A writing upon the back of anything, as upon the back of a sheet already written upon on one side.
OPISTHOGRAPHY n. inscribing on the back as well as the front.
ORTHOEPICALLYorthoepically adv. In an orthoepical manner: pronounced correctly or in accordance with standard usage.
ORTHOEPICAL adv. relating to orthoepy, the study of correct pronunciation, also ORTHOEPIC.
ORTHOGONALITYorthogonality n. (Mathematics, statistics, software engineering) The property of being orthogonal.
ORTHOGONALITY n. the state of being orthogonal.
POLYCHROMATICpolychromatic adj. Showing a variety, or a change, of colours; having many colours; multicoloured.
polychromatic adj. (Physics, of electromagnetic radiation) Composed of more than one wavelength.
POLYCHROMATIC adj. showing a variety or a change of colors.
POLYHISTORIANpolyhistorian n. Synonym of polyhistor.
POLYHISTORIAN n. a person of great and varied learning, also POLYHISTOR.
RHYTHMOPOEIASRHYTHMOPOEIA n. the art of composing rhythmically.

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: 117 words
  • Scrabble in French: 9 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: 1 word


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