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There are 13 fifteen-letter words containing A, H, 2I, 3O and R

AEROLITHOLOGIESAEROLITHOLOGY n. the study of aerolites.
ALLOTRIOMORPHICallotriomorphic adj. (Chemistry) allotropic.
allotriomorphic adj. (Geology) xenomorphic.
ALLOTRIOMORPHIC adj. crystalline in internal structure but not in outward form.
CHORIOALLANTOICchorioallantoic adj. Of or pertaining to the chorioallantois.
CHORIOALLANTOIC adj. of or like a chorioallantois, a highly vascularized fetal membrane.
CHORIOALLANTOISchorioallantois n. (Anatomy) The vascular extraembryonic membrane, formed by the fusion of the allantois and the chorion…
CHORIOALLANTOIS n. a highly vascularized fetal membrane.
CHORIOCARCINOMAchoriocarcinoma n. (Oncology) A malignant, trophoblastic cancer, usually of the placenta.
CHORIOCARCINOMA n. a malignant tumor typically developing in the uterus from the trophoblast.
DIAPHOTOTROPIESDIAPHOTOTROPY n. the state of being diaphototropic, turning transversely to the light.
DIAPHOTOTROPISMDIAPHOTOTROPISM n. the state of being diaphototropic, turning transversely to the light.
HYDROBIOLOGICALhydrobiological adj. Of or pertaining to hydrobiology.
HYDROBIOLOGICAL adj. relating to hydrobiology, the study of aquatic organisms.
ORTHOGONALISINGorthogonalising v. Present participle of orthogonalise.
ORTHOGONALISE v. to make orthogonal, also ORTHOGONALIZE.
ORTHOGONALITIESorthogonalities n. Plural of orthogonality.
ORTHOGONALITY n. the state of being orthogonal.
ORTHOGONALIZINGorthogonalizing v. Present participle of orthogonalize.
ORTHOGONALIZE v. to make orthogonal, also ORTHOGONALISE.
PROTOHISTORIANSprotohistorians n. Plural of protohistorian.
PROTOHISTORIAN n. one who studies protohistory.
SOCIOHISTORICALsociohistorical adj. Of or pertaining to social and historical factors.
socio-historical adj. Alternative form of sociohistorical.
SOCIOHISTORICAL adj. of, relating to, or involving social history or a combination of social and historical factors.

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: 86 words
  • Scrabble in French: 5 words
  • Scrabble in Spanish: 11 words
  • Scrabble in Italian: 25 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 32 words


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