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There are 19 twelve-letter words containing H, I, 3O, R and 2T

HEORTOLOGISTheortologist n. A person who studies heortology.
HEORTOLOGIST n. one who practises heortology, the study of religious feasts.
ORTHODONTIASORTHODONTIA n. the rectification of crookedness in the teeth, also ORTHODONTICS.
ORTHODONTICSorthodontics n. (Medicine) A specialty of dentistry concerned with correcting misalignment of teeth.
ORTHODONTICS n. the rectification of crookedness in the teeth, also ORTHODONTIA.
ORTHODONTISTorthodontist n. An orthodontic dentist.
ORTHODONTIST n. one who practises orthodontics.
ORTHOPTEROIDorthopteroid n. (Entomology) Any of the insects historically included in the order Orthoptera, including the cockroaches…
ORTHOPTEROID n. a member of the Orthoptera, cockroaches.
ORTHOTONESISorthotonesis n. The accentuation of a proclitic or enclitic.
ORTHOTONESIS n. accentuation of a proclitic or enclitic, as opposed to enclisis.
ORTHOTROPIESORTHOTROPY n. the state of being orthotropic, growing along a vertical axis.
ORTHOTROPISMorthotropism n. The property of being orthotropic or orthotropous.
ORTHOTROPISM n. vertical growth.
PHOTOTROPHICphototrophic adj. (Biology) That exhibits phototrophy.
PHOTOTROPHIC adj. relating to phototropism, movement directed by light.
PHOTOTROPIESPHOTOTROPY n. change of colour due to wavelength of incident light.
PHOTOTROPISMphototropism n. (Biology) The movement of a plant towards or away from light.
PHOTOTROPISM n. movement directed by light.
PROTOHISTORYprotohistory n. The period between prehistory and history, during which a culture or civilization has not yet developed…
PROTOHISTORY n. the study of human beings in the times that immediately antedate recorded history.
PROTOTROPHICprototrophic adj. (Biology) Of or pertaining to a prototroph or to prototrophy.
PROTOTROPHIC adj. of bacteria, feeding directly on uncombined elements.
TRAITORHOODSTRAITORHOOD n. the state of being a traitor.
TRICHOTOMOUStrichotomous adj. Divided into three parts, or into threes; forking three ways.
trichotomous adj. (Set theory) Such that, for all x and y in X, and for a binary relation R, exactly one of xRy, yRx or x=y holds.
TRICHOTOMOUS adj. divided into three parts.
TROPHOBIOTICtrophobiotic adj. Of or pertaining to trophobiosis.
TROPHOBIOTIC adj. relating to trophobiosis, mutual exchange of nutriment in symbiosis.
TROPHOTROPICtrophotropic adj. Relating to trophotropy.
TROPHOTROPIC adj. related to trophotropism, direction of growth by nutritional factors.
TROPHOZOITEStrophozoites n. Plural of trophozoite.
TROPHOZOITE n. in Protozoa, the trophic phase of an adult.
WITHOUTDOORSwithoutdoors adv. (Archaic) outdoors.
WITHOUTDOORS adv. outdoors.

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: 45 words
  • Scrabble in French: 2 words
  • Scrabble in Spanish: 1 word
  • Scrabble in Italian: 5 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 10 words


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