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There are 16 fifteen-letter words containing I, M, O, P, 2R, S and U

CIRCUMSCRIPTIONcircumscription n. The act of circumscribing or the quality of being circumscribed.
circumscription n. Anything that circumscribes or a circumscribed area.
circumscription n. (Taxonomy) The definition of what does and does not belong to a given taxon, from a particular taxonomic…
CRYPTOSPORIDIUMcryptosporidium n. Any protozoan of the genus Cryptosporidium, intestinal parasites of humans and other vertebrates that…
Cryptosporidium prop.n. A taxonomic genus within the family Cryptosporidiidae – coccidian protozoan parasites causing the disease…
CRYPTOSPORIDIUM n. any of a genus of protozoans parasitic in the gut of vertebrates including humans and sometimes causing diarrhea.
IMPERTURBATIONSIMPERTURBATION n. the state of being unperturbed.
MACROSPORANGIUMmacrosporangium n. (Botany) A megasporangium; sporangium or conceptacle containing only large spores; opposed to microsporangium.
MACROSPORANGIUM n. a sporangium producing only megaspores.
MERCAPTOPURINESmercaptopurines n. Plural of mercaptopurine.
MERCAPTOPURINE n. an antimetabolite sometimes used in the treatment of acute leukemia.
MICROPUBLISHERSmicropublishers n. Plural of micropublisher.
MICROPUBLISHER n. one who publishes in microform, a process for reproducing printed matter in much reduced size.
MICROSPORANGIUMmicrosporangium n. (Botany) A case, capsule or container that holds microspores.
MICROSPORANGIUM n. the sporangium in heterosporous plants where the microspores develop.
MULTIPROCESSORSmultiprocessors n. Plural of multiprocessor.
MULTIPROCESSOR n. a type of computer.
PARAJOURNALISMSPARAJOURNALISM n. journalism that is heavily colored by the opinions of the reporter.
PARAMYXOVIRUSESparamyxoviruses n. Plural of paramyxovirus.
PARAMYXOVIRUS n. any of a group of viruses which includes the mumps and measles viruses.
SUPERMAJORITIESsupermajorities n. Plural of supermajority.
super-majorities n. Plural of super-majority.
SUPERMAJORITY n. a majority (as two-thirds or three-fifths) greater than a simple majority.
SUPERORGANICISMsuperorganicism n. (Philosophy) The belief that a culture or society transcends the purely organic nature of its individuals.
SUPERORGANICISM n. the state of being superorganic.
SUPERPATRIOTISMsuperpatriotism n. Extreme patriotism.
SUPERPATRIOTISM n. extreme patriotism.
TETRASPORANGIUMtetrasporangium n. (Botany) A sporangium that produces tetraspores.
TETRASPORANGIUM n. the sporangium in which tetraspores are formed.
ULTRAMICROSCOPEultramicroscope n. A microscope that uses bright illumination against a black background to view small particles.
ULTRAMICROSCOPE n. an instrument for viewing extremely small objects.
ULTRAMICROSCOPYultramicroscopy n. The scientific use of the ultramicroscope.
ULTRAMICROSCOPY n. microscopy using an ultramicroscope.

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 WikWik.org and 1Word.ws.

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See this list for:

  • English Wiktionary: 117 words
  • Scrabble in French: 48 words
  • Scrabble in Spanish: 116 words
  • Scrabble in Italian: 43 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 62 words


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