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There are 17 twelve-letter words containing H, 3O, P, 2S and T

HOPLOLOGISTShoplologists n. Plural of hoplologist.
HOPLOLOGIST n. a student of hoplology, the study of weapons.
HOROSCOPISTShoroscopists n. Plural of horoscopist.
HOROSCOPIST n. one who casts horoscopes, an astrologer.
MONOSTROPHESmonostrophes n. Plural of monostrophe.
MONOSTROPHE n. a poem in which all the stanzas or strophes are written in the same metre.
OOPHORITISESOOPHORITIS n. inflammation of the ovaries.
OPHIOLOGISTSophiologists n. Plural of ophiologist.
OPHIOLOGIST n. a student of ophiology.
OPISTHODOMOSopisthodomos n. (Greek architecture) A porch at the rear of a temple, set against the blank back wall of the cella.
OPISTHODOMOS n. (Greek) a portico or apartment at the back of an ancient Greek or Roman temple.
OPISTHOTONOSopisthotonos n. (Medicine) Sustained tetanic spasm in which the body is bent backwards and stiffened, as produced by various diseases.
OPISTHOTONOS n. extreme arching backwards of the spine and neck as a result of spasm of the muscles in that region, etc.
PHONOLOGISTSphonologists n. Plural of phonologist.
PHONOLOGIST n. a student of phonology, the branch of linguistics that deals with systems of sounds.
PHOTOFISSIONphotofission n. (Nuclear physics) Nuclear fission as the result of the absorption of a gamma ray or other high-energy photon.
photofission v. (Nuclear physics) To undergo, or cause to undergo, photofission.
PHOTOFISSION n. nuclear fission induced by gamma rays.
PHOTOIONISESPHOTOIONISE v. to ionize by electromagnetic radiation, also PHOTOIONIZE.
PHOTOMOSAICSphotomosaics n. Plural of photomosaic.
PHOTOMOSAIC n. an image composed of many smaller photographs.
PHOTOSENSORSphotosensors n. Plural of photosensor.
PHOTOSENSOR n. a detector that is sensitive to electromagnetic radiation.
PHOTOTONUSESPHOTOTONUS n. the sensitivity of a living organism to light.
PHYSOSTOMOUSphysostomous adj. (Zoology) Having a duct to the air bladder.
physostomous adj. (Zoology) Relating to the Physostomi.
PHYSOSTOMOUS adj. of fishes, having a duct connecting the air bladder to part of the alimentary canal.
POSTWORKSHOPpostworkshop adj. After a workshop (educational course or conference).
POSTWORKSHOP adj. taking place after a workshop.
TROPHOBIOSEStrophobioses n. Plural of trophobiosis.
TROPHOBIOSIS n. exchange of nutriment in symbiotic relationship.
TROPHOBIOSIStrophobiosis n. (Zoology) A symbiotic association in which one organism obtains or provides food for another.
TROPHOBIOSIS n. exchange of nutriment in symbiotic relationship.

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: 49 words
  • Scrabble in French: 7 words
  • Scrabble in Spanish: 1 word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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