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There are 15 twelve-letter words containing I, O, P, 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.
CYSTOSCOPIEScystoscopies n. Plural of cystoscopy.
CYSTOSCOPY n. an examination using a cystoscope, an instrument for examining the bladder.
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.
POLYMASTISMSPOLYMASTISM n. the presence of supernumerary breasts or nipples, also POLYMASTIA, POLYMASTY.
PROSELYTISESproselytises v. Third-person singular simple present indicative form of proselytise.
PROSELYTISE v. to recruit or convert esp. to a new faith, institution, or cause, also PROSELYTIZE.
PROSELYTISMSproselytisms n. Plural of proselytism.
PROSELYTISM n. conversion.
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.
SPASMOLYTICSspasmolytics n. Plural of spasmolytic.
SPASMOLYTIC n. a spasmolytic drug.
STENOTYPISTSstenotypists n. Plural of stenotypist.
STENOTYPIST n. one who types with a stenotype, also STENOTYPER.

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: 39 words
  • Scrabble in French: 10 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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