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There are 13 fifteen-letter words containing I, N, O, R, 2S, U and Y

AGRANULOCYTOSISagranulocytosis n. (Pathology) An acute condition involving a severe and dangerous leukopenia, particularly of neutrophils…
AGRANULOCYTOSIS n. a blood disorder in which there is a marked decrease in granulocytes, with lesions of the mucous membrane and skin.
DISHARMONIOUSLYdisharmoniously adv. In a disharmonious manner.
DISHARMONIOUS adv. lacking in harmony.
DISQUISITIONARYdisquisitionary adj. Pertaining to disquisition; disquisitional.
DISQUISITIONARY adj. of or like a disquisition, also DISQUISITIONAL, DISQUISITIVE, DISQUISITORY.
ICHTHYOSAURIANSichthyosaurians n. Plural of ichthyosaurian.
ICHTHYOSAURIAN n. a large fossil marine reptile, also ICHTHYOSAUR, ICHTHYOSAURUS.
NEUROHYPOPHYSISneurohypophysis n. (Anatomy) The posterior lobe of the pituitary gland, responsible for the release of oxytocin and antidiuretic…
NEUROHYPOPHYSIS n. the portion of the pituitary gland that is composed of the infundibulum and posterior lobe and is concerned with the secretion of various hormones.
NEUROSYPHILISESNEUROSYPHILIS n. a syphilitic infection affecting the central nervous system.
PSYCHONEUROTICSpsychoneurotics n. Plural of psychoneurotic.
PSYCHONEUROTIC n. one suffering from a psychoneurosis.
SAUROPTERYGIANSsauropterygians n. Plural of sauropterygian.
SAUROPTERYGIAN n. any carnivorous Mesozoic marine reptile of the group Sauropterygia, with paddle-like limbs.
SERENDIPITOUSLYserendipitously adv. By serendipity; by blind luck in combination with wisdom; by fortunate accident.
SERENDIPITOUS adv. obtained or characterized by serendipity.
SPLENDIFEROUSLYsplendiferously adv. In a splendiferous manner.
SPLENDIFEROUS adv. splendid.
SUBSTITUTIONARYsubstitutionary adj. Of or relating to substitution or replacement.
SUBSTITUTIONARY adj. relating to substitution.
SULFINPYRAZONESsulfinpyrazones n. Plural of sulfinpyrazone.
SULFINPYRAZONE n. a uricosuric drug used in the long-term treatment of chronic gout.
UNPROGRESSIVELYunprogressively adv. In an unprogressive way.
UNPROGRESSIVE adv. not progressive.

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: 92 words
  • Scrabble in French: 6 words
  • Scrabble in Spanish: 16 words
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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