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There are 17 thirteen-letter words containing E, H, N, 2O, R, S and Y

DYSMENORRHOEAdysmenorrhoea n. Alternative spelling of dysmenorrhea.
dysmenorrhœa n. Obsolete form of dysmenorrhea.
DYSMENORRHOEA n. painful menstruation, also DYSMENORRHEA.
HETEROKARYONSheterokaryons n. Plural of heterokaryon.
HETEROKARYON n. a cell, as in the mycelium of a fungus, that contains two or more genetically unlike nuclei.
HYDROGENATORShydrogenators n. Plural of hydrogenator.
HYDROGENATOR n. an agent that hydrogenates.
HYDROQUINONEShydroquinones n. Plural of hydroquinone.
HYDROQUINONE n. another name for quinol.
HYMENOPTERONShymenopterons n. Plural of hymenopteron.
HYMENOPTERON n. an order of insect having four membranous wings, e.g. ants, bees, wasps, also HYMENOPTERAN.
HYMENOPTEROUShymenopterous adj. (Entomology) Of the order Hymenoptera; hymenopteran.
HYMENOPTEROUS adj. having four membranous wings, as do ants, bees and wasps.
HYPERBOLAEONSHYPERBOLAEON n. a term in in Greek prosody.
NARCOHYPNOSESNARCOHYPNOSIS n. the use of narcotics to produce hypnosis.
PHARYNGOSCOPEpharyngoscope n. An instrument used to examine the pharynx.
PHARYNGOSCOPE n. an instrument for inspecting the pharynx.
PHYTOESTROGENphytoestrogen n. (Biochemistry) A substance found in certain plants (such as genistein) which can produce effects like…
PHYTOESTROGEN n. a plant substance similar to a weak oestrogen.
PHYTOHORMONESphytohormones n. Plural of phytohormone.
PHYTOHORMONE n. a plant hormone, regulating growth.
PROPOXYPHENESpropoxyphenes n. Plural of propoxyphene.
PROPOXYPHENE n. a narcotic analgesic structurally related to methadone but less addicting.
PSYCHOSURGEONpsychosurgeon n. One who carries out psychosurgery.
PSYCHOSURGEON n. a practitioner of psychosurgery.
PYRITOHEDRONSpyritohedrons n. Plural of pyritohedron.
PYRITOHEDRON n. a pentagonal dodecahedron.
RHYNCHOPHORESRHYNCHOPHORE n. a member of the Rhyncophora, weevils.
SYNCHONDROSESsynchondroses n. Plural of synchondrosis.
SYNCHONDROSIS n. synarthrosis in which the bone surfaces are connected by cartilage.
SYNCHROSCOPESsynchroscopes n. Plural of synchroscope.
SYNCHROSCOPE n. an instrument for detecting whether two moving parts are synchronized.

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: 101 words
  • Scrabble in French: 32 words
  • Scrabble in Spanish: 1 word
  • Scrabble in Italian: 2 words
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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