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There are 13 fifteen-letter words containing N, 3O, 2R and 2S

CORTICOSTERONEScorticosterones n. Plural of corticosterone.
CORTICOSTERONE n. a colorless crystalline corticosteroid important in protein and carbohydrate metabolism.
HYDROCORTISONEShydrocortisones n. Plural of hydrocortisone.
HYDROCORTISONE n. a glucocorticoid hormone that is used to treat inflammatory and allergic conditions, aka cortisol.
NONPROFESSORIALnonprofessorial adj. Not professorial.
NONPROFESSORIAL adj. not professorial.
ODORIFEROUSNESSodoriferousness n. The quality of being odoriferous.
ODORIFEROUS n. giving off an odour; morally offensive, also ODIFEROUS.
OPPROBRIOUSNESSopprobriousness n. The state or condition of being opprobrious.
OPPROBRIOUS n. expressing contemptuous reproach; bringing disgrace.
PHOTOTRANSISTORphototransistor n. (Electronics) Any semiconductor device whose electrical characteristics are light-sensitive.
PHOTOTRANSISTOR n. a junction transistor, whose base signal is generated by illumination of the base.
PROGNOSTICATORSprognosticators n. Plural of prognosticator.
PROGNOSTICATOR n. one who prognosticates.
PROTOHISTORIANSprotohistorians n. Plural of protohistorian.
PROTOHISTORIAN n. one who studies protohistory.
SEROCONVERSIONSseroconversions n. Plural of seroconversion.
SEROCONVERSION n. the production of antibodies in response to an antigen.
SHOWERPROOFINGSSHOWERPROOFING n. the act of making proof against showers.
SPORANGIOPHORESsporangiophores n. Plural of sporangiophore.
SPORANGIOPHORE n. a stalk to which sporangia are attached.
SPORANGIOSPORESsporangiospores n. Plural of sporangiospore.
SPORANGIOSPORE n. a spore developed in a sporangium.
VASOCONSTRICTORvasoconstrictor n. (Pharmacology) Any substance that causes vasoconstriction.
VASOCONSTRICTOR n. an agent (as a sympathetic nerve fiber or a drug) that induces or initiates vasoconstriction.

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: 88 words
  • Scrabble in French: 44 words
  • Scrabble in Spanish: 34 words
  • Scrabble in Italian: 78 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 17 words


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