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There are 14 twelve-letter words containing H, I, O, 3S, T and Y

ASTROPHYSICSastrophysics n. The branch of astronomy or physics that deals with the physical properties of celestial bodies and with…
ASTROPHYSICS n. a branch of astronomy dealing esp. with the behavior, physical properties, and dynamic processes of celestial objects and phenomena.
BIOSYNTHESESbiosyntheses n. Plural of biosynthesis.
BIOSYNTHESIS n. the production of a chemical compound by a living organism.
BIOSYNTHESISbiosynthesis n. (Biochemistry) The synthesis of organic compounds within a living organism, especially the synthesis…
BIOSYNTHESIS n. the production of a chemical compound by a living organism.
HYPEROSTOSIShyperostosis n. (Medicine) An excessive growth or thickening of bone.
HYPEROSTOSIS n. abnormal growth of bone tissue.
HYPOSTASISEDhypostasised v. Simple past tense and past participle of hypostasise.
HYPOSTASISE v. to treat as hypostasis, to personify, also HYPOSTASIZE, HYPOSTATISE, HYPOSTATIZE.
HYPOSTASISEShypostasises v. Third-person singular simple present indicative form of hypostasise.
HYPOSTASISE v. to treat as hypostasis, to personify, also HYPOSTASIZE, HYPOSTATISE, HYPOSTATIZE.
HYPOSTASIZEShypostasizes v. Third-person singular simple present indicative form of hypostasize.
HYPOSTASIZE v. to treat as hypostasis; to personify, also HYPOSTASISE, HYPOSTATISE, HYPOSTATIZE.
HYPOSTATISEShypostatises v. Third-person singular simple present indicative form of hypostatise.
HYPOSTATISE v. to treat as hypostasis; to personify, also HYPOSTASISE, HYPOSTASIZE, HYPOSTATIZE.
HYPOTHESISEShypothesises v. Third-person singular simple present indicative form of hypothesise.
HYPOTHESISE v. to form a hypothesis, also HYPOTHESIZE, HYPOTHETISE, HYPOTHETIZE.
HYPOTHESISTShypothesists n. Plural of hypothesist.
HYPOTHESIST n. one who forms a hypothesis.
SCYPHISTOMASscyphistomas n. Plural of scyphistoma.
SCYPHISTOMA n. the fixed polypoid stage in the life cycle of a scyphozoan, which reproduces asexually by budding or strobilation.
SOOTHSAYINGSsoothsayings n. Plural of soothsaying.
SOOTHSAYING n. the act of divining.
SYNARTHROSISsynarthrosis n. (Anatomy) A type of joint in which two bones are connected rigidly by fibrous tissue.
SYNARTHROSIS n. the fixed articulation of bones.
TOYISHNESSESTOYISHNESS n. the state of being toyish.

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: 34 words
  • Scrabble in French: 12 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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