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There are 20 thirteen-letter words containing A, I, M, 3O, P and S

APOGEOTROPISMapogeotropism n. (Botany) An apogeotropic tendency.
APOGEOTROPISM n. bending up or away from the ground.
COMPOSITIONALcompositional adj. Of or pertaining to composition.
compositional adj. (Linguistics) Being the sum of its parts.
COMPOSITIONAL adj. relating to composition.
COMPOSITORIALcompositorial adj. Relating to a compositor.
compositorial n. (Mathematics) The product of all composite numbers less than or equal to a particular number.
COMPOSITORIAL adj. relating to the composition of type.
COSMOPOLITANScosmopolitans n. Plural of cosmopolitan.
COSMOPOLITAN n. a citizen of the world.
HOMOEOPATHIESHOMOEOPATHY n. the use of minute quantities of medications that in large amounts, produce symptoms like those of the disease being treated, also HOMEOPATHY.
HOMOEOPATHISThomoeopathist n. Alternative form of homeopathist.
homœopathist n. Obsolete form of homeopathist.
HOMOEOPATHIST n. one who practises homoeopathy, also HOMEOPATH, HOMEOPATHIST, HOMOEOPATH.
NANOCOMPOSITEnanocomposite n. Any composite material one or more of whose components is some form of nanoparticle; more often consists…
ONOMATOPOEIASonomatopoeias n. Plural of onomatopoeia.
onomatopœias n. Plural of onomatopœia.
ONOMATOPOEIA n. the naming of a thing or action by a vocal imitation of the sound associated with it, also ONOMATOPOESIS, ONOMATOPOIESIS.
ONOMATOPOESISonomatopoesis n. Onomatopoeia.
ONOMATOPOESIS n. onomatopoeia, also ONOMATOPOEIA, ONOMATOPOIESIS.
OPISTHOSOMATAopisthosomata n. Plural of opisthosoma.
OPISTHOSOMA n. the abdomen of a spider or other arachnid.
PLAGIOSTOMOUSplagiostomous adj. (Zoology) Of or pertaining to the Plagiostomi.
PLAGIOSTOMOUS adj. of or like a plagiostome, also PLAGIOSTOMATOUS.
POLYRIBOSOMALpolyribosomal adj. Pertaining to, or composed of polyribosome.
POLYRIBOSOMAL adj. of or like a polyribosome.
POTAMOLOGISTSpotamologists n. Plural of potamologist.
POTAMOLOGIST n. one who studies rivers.
SOMATOTROPHICsomatotrophic adj. That stimulates body growth, especially by producing somatotrophin.
SOMATOTROPHIC adj. promoting bodily growth, also SOMATOTROPIC.
SOMATOTROPHINsomatotrophin n. Alternative spelling of somatotropin.
SOMATOTROPHIN n. a polypeptide growth hormone, also SOMATOTROPIN, SOMATOTROPINE.
SOMATOTROPINEsomatotropine n. Alternative spelling of somatotropin.
SOMATOTROPINE n. a growth hormone, also SOMATOTROPHIN, SOMATOTROPIN.
SOMATOTROPINSsomatotropins n. Plural of somatotropin.
SOMATOTROPIN n. a polypeptide growth hormone, also SOMATOTROPHIN, SOMATOTROPINE.
TOPOISOMERASEtopoisomerase n. (Biochemistry) Any of several enzymes that affect the topology of DNA, especially ones that relax supercoiling.
TOPOISOMERASE n. any of a class of enzymes that reduce supercoiling in DNA by breaking and rejoining one or both strands of the DNA molecule.
TOXOPLASMOSIStoxoplasmosis n. A disease, caused by the parasite Toxoplasma gondii, that primarily affects felids, but also other mammals…
TOXOPLASMOSIS n. an infection of animals (esp. the domestic cat) and humans by microorganisms, prob protozoa, of the genus Toxoplasma.
ZOOSPORANGIUMzoosporangium n. (Botany) A sporangium, or conceptacle containing or producing zoospores.
zoösporangium n. Alternative spelling of zoosporangium.
ZOOSPORANGIUM n. a spore case or sporangium bearing zoospores.

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: 94 words
  • Scrabble in French: 12 words
  • Scrabble in Spanish: 68 words
  • Scrabble in Italian: 88 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 32 words


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