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List of 13-letter words containing

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There are 10 thirteen-letter words containing D, G, I, 2O, P, R and T

DIAGEOTROPISMdiageotropism n. (Botany) The tendency of plant organs, such as roots, to assume a position oblique or transverse to…
DIAGEOTROPISM n. the tendency of roots to orient perpendicular to gravity.
DOORSTEPPINGSdoorsteppings n. Plural of doorstepping.
DOORSTEPPING n. going from door to door canvassing.
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.
PHOTOREDUCINGphotoreducing v. Present participle of photoreduce.
PHOTOREDUCE v. to photocopy with reduction of the image.
PROGLOTTIDEANPROGLOTTIDEAN adj. of or like a proglottis, a segment of a tapeworm.
PROGRADATIONSprogradations n. Plural of progradation.
PROGRADATION n. the act of prograding, advancing seaward.
PTERIDOLOGIESPTERIDOLOGY n. the study of ferns.
PTERIDOLOGISTpteridologist n. A person who studies ferns and other pteridophytes.
PTERIDOLOGIST n. one who studies pteridology.

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: 57 words
  • Scrabble in French: 2 words
  • Scrabble in Spanish: 10 words
  • Scrabble in Italian: 17 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 12 words


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