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List of 13-letter words containing

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There are 17 thirteen-letter words containing H, 2N, 3O and S

HOLOPLANKTONSHOLOPLANKTON n. organisms which remain as plankton throughout their whole life cycle.
INHOMOGENEOUSinhomogeneous adj. Not homogeneous.
INHOMOGENEOUS adj. relating to inhomogeneity.
MONOPHYODONTSmonophyodonts n. Plural of monophyodont.
MONOPHYODONT n. an animal with only one set of teeth.
NEUROHORMONESneurohormones n. Plural of neurohormone.
NEUROHORMONE n. a hormone (as acetylcholine or norepinephrine) produced by or acting on nervous tissue.
NONALCOHOLICSnonalcoholics n. Plural of nonalcoholic.
NONHOMOLOGOUSnonhomologous adj. (Genetics) Not homologous.
NONHOMOLOGOUS adj. not homologous.
NONHOMOSEXUALnonhomosexual adj. Not homosexual.
nonhomosexual n. One who is not a homosexual.
NONHOMOSEXUAL n. one who is not homosexual.
NONORTHODOXESSorry, definition not available.
ODONTOPHORANSODONTOPHORAN n. an odontophore, the rasping apparatus in molluscs.
ODONTORNITHESODONTORNITHES n. fossil birds with teeth.
ONYCHOPHORANSonychophorans n. Plural of onychophoran.
ONYCHOPHORAN n. any of numerous velvety-skinned wormlike carnivorous animals common in tropical forests having characteristics of both arthropods and annelid worms.
PHONENDOSCOPEphonendoscope n. A form of stethoscope used in auscultation.
PHONENDOSCOPE n. a device which amplifies small sounds, especially within the human body.
PHOTOIONISINGPHOTOIONISE v. to ionize by electromagnetic radiation, also PHOTOIONIZE.
PHOTONEUTRONSphotoneutrons n. Plural of photoneutron.
PHOTONEUTRON n. a neutron emitted from a nucleus as a result of photodisintegration.
POGONOPHORANSpogonophorans n. Plural of pogonophoran.
POGONOPHORAN n. any of a phylum Pogonophora of marine wormlike animals.
RHODODENDRONSrhododendrons n. Plural of rhododendron.
RHODODENDRON n. any of a genus of widely cultivated shrubs and trees of the heath family.
SYNCHRONOLOGYsynchronology n. Contemporaneous chronology.
synchronology n. Chronological arrangement side by side.
SYNCHRONOLOGY n. a chronological arrangement side by side.

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: 116 words
  • Scrabble in French: 23 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: 14 words
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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