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There are 19 fifteen-letter words containing A, I, 2N, O, S and 2U

AUTOTRANSFUSIONautotransfusion n. (Medicine) A blood transfusion in which a person receives their own blood, extracted previously.
AUTOTRANSFUSION n. the return of autologous blood to the patient's own circulatory system.
CIRCUMNUTATIONScircumnutations n. Plural of circumnutation.
CIRCUMNUTATION n. rotation in a nodding position, as the helical path described by the growing point of a plant.
IMMUNOSTIMULANTimmunostimulant n. (Immunology, pharmacology) Any substance that stimulates an immune response.
immunostimulant adj. (Immunology, pharmacology) That stimulates an immune response.
IMMUNOSTIMULANT n. a drug or nutrient which stimulates the body's immune system.
MISPUNCTUATIONSmispunctuations n. Plural of mispunctuation.
MISPUNCTUATION n. a wrong punctuation.
MOUNTAINOUSNESSmountainousness n. The quality of being mountainous.
MOUNTAINOUSNESS n. the state of being mountainous.
MUCOSANGUINEOUSmucosanguineous adj. (Medicine) Containing mucus and blood.
MUCOSANGUINEOUS adj. consisting of mucus and blood.
NONSIMULTANEOUSnonsimultaneous adj. Not simultaneous.
NONSIMULTANEOUS adj. not simultaneous.
PUNCTUATIONISTSpunctuationists n. Plural of punctuationist.
PUNCTUATIONIST n. a believer in punctuated equilibrium.
SANGUINEOUSNESSSANGUINEOUS n. bloodred; of or relating to blood.
SUBINFEUDATIONSsubinfeudations n. Plural of subinfeudation.
SUBINFEUDATION n. the sublease of a portion of a feudal estate by a vassal to a tenant who pays fealty to the vassal.
SUBINSINUATIONSSUBINSINUATION n. something less than an insinuation.
SUBURBANISATIONsuburbanisation n. Alternative form of suburbanization.
SUBURBANISATION n. the act of suburbanising, also SUBURBANIZATION.
SUBURBANIZATIONsuburbanization n. The process of suburbanizing, of population movement from cities to suburbs.
SUBURBANIZATION n. the act of suburbanizing, also SUBURBANISATION.
SUPERANNUATIONSsuperannuations n. Plural of superannuation.
SUPERANNUATION n. the act of superannuating.
UBIQUITINATIONSubiquitinations n. Plural of ubiquitination.
UBIQUITINATION n. the process of making ubiquitous.
UNANIMOUSNESSESUNANIMOUSNESS n. UNANIMOUS, of one mind.
UNDERVALUATIONSundervaluations n. Plural of undervaluation.
UNDERVALUATION n. the act of undervaluing.
UNEQUIVOCALNESSunequivocalness n. The quality of being unequivocal.
UNEQUIVOCALNESS n. the state of being unequivocal.
UNSAVOURINESSESUNSAVOURINESS n. the state of being unsavoury.

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: 110 words
  • Scrabble in French: 22 words
  • Scrabble in Spanish: 20 words
  • Scrabble in Italian: 21 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 90 words


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