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There are 18 twelve-letter words containing H, 3O, P, R and 2T

ANTHROPOTOMYanthropotomy n. The anatomy or dissection of the human body; androtomy.
ANTHROPOTOMY n. human anatomy.
HETEROTOPOUSheterotopous adj. Exhibiting heterotopy.
HETEROTOPOUS adj. relating to heterotopy, displacement of an organ of the body, also HETEROTOPIC.
ORTHOPTEROIDorthopteroid n. (Entomology) Any of the insects historically included in the order Orthoptera, including the cockroaches…
ORTHOPTEROID n. a member of the Orthoptera, cockroaches.
ORTHOPTEROUSorthopterous adj. (Zoology) Belonging to the Orthoptera.
ORTHOPTEROUS adj. pertaining or belonging to insect order including grasshoppers, crickets, etc.
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.
ORTHOTROPOUSorthotropous adj. (Botany, of an ovule) Growing straight and having the micropyle at the apex.
ORTHOTROPOUS adj. growing straight, so that the micropyle is opposite the stalk.
PHOTONEUTRONphotoneutron n. (Physics) Any neutron produced by a photonuclear reaction.
PHOTONEUTRON n. a neutron emitted from a nucleus as a result of photodisintegration.
PHOTOPRODUCTphotoproduct n. (Chemistry) Any product of a photochemical reaction.
PHOTOPRODUCT n. a product of a photochemical reaction.
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.
PROTHONOTARYprothonotary n. (Obsolete, historical) A chief legal clerk or notary in Roman Byzantium, and (hence) in Rome.
prothonotary n. (Roman Catholicism) One of the seven prelates, constituting a college in the Roman Curia, whose office…
prothonotary n. A registrar or chief clerk in various courts of law, especially (US) in a county court, (Australia)…
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.
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.

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: 55 words
  • Scrabble in French: 1 word
  • Scrabble in Spanish: no word
  • Scrabble in Italian: 2 words
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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