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There are 15 thirteen-letter words containing A, D, I, 3O, P and T

AUTOPOLYPLOIDautopolyploid adj. (Genetics) Having more than two sets of chromosomes, derived from the same species, as a result of redoubling.
autopolyploid n. Any organism of this kind.
AUTOPOLYPLOID n. an individual or strain whose chromosome complement consists of more than two complete copies of the genome of a single ancestral species.
DIAPHOTOTROPYDIAPHOTOTROPY n. the state of being diaphototropic, turning transversely to the light.
DIPLOMATOLOGYdiplomatology n. The study or science of diplomatics, charters, decrees, etc.
DIPLOMATOLOGY n. the study of diplomats.
GONADOTROPHICgonadotrophic adj. Of, pertaining to, or stimulating the functions of the gonads.
GONADOTROPHIC adj. stimulating the gonads, also GONADOTROPIC.
GONADOTROPHINgonadotrophin n. Any of a group of protein hormones secreted by gonadotrope cells of the pituitary gland of vertebrates.
GONADOTROPHIN n. a substance that stimulates the gonads.
GONADOTROPINSgonadotropins n. Plural of gonadotropin.
GONADOTROPIN n. a gonadotropic hormone, as follicle-stimulating hormone.
ODONTOPHOBIASodontophobias n. Plural of odontophobia.
ODONTOPHOBIA n. the fear of teeth.
ORTHOPINAKOIDORTHOPINAKOID n. in monoclinic crystals, a form consisting of two faces parallel to the orthodiagonal and the vertical axis.
PODSOLISATIONPODSOLISATION n. the process of turning into a podsol, also PODSOLIZATION, PODZOLISATION, PODZOLIZATION.
PODSOLIZATIONpodsolization n. Alternative form of podzolization.
PODSOLIZATION n. the process of turning into a podsol, also PODSOLISATION, PODZOLISATION, PODZOLIZATION.
PODZOLISATIONpodzolisation n. Alternative form of podzolization.
PODZOLISATION n. the process of turning into a podzol, also PODSOLISATION, PODSOLIZATION, PODZOLIZATION.
PODZOLIZATIONpodzolization n. The process of podzolizing.
PODZOLIZATION n. the process of turning into a podsol, also PODSOLISATION, PODSOLIZATION, PODZOLISATION.
PROSTHODONTIAPROSTHODONTIA n. the provision of false teeth, also PROSTHODONTICS.
RADIOISOTOPESradioisotopes n. Plural of radioisotope.
RADIOISOTOPE n. a radioactive isotope.
RADIOISOTOPICradioisotopic adj. Of, pertaining to, or employing radioisotopes.
RADIOISOTOPIC adj. of or like a radioisotope, a radioactive isotope.

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: 54 words
  • Scrabble in French: 2 words
  • Scrabble in Spanish: 12 words
  • Scrabble in Italian: 15 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 20 words


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