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List of 13-letter words containing

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There are 15 thirteen-letter words containing E, 2H, M, N, O and T

CHLOROMETHANEchloromethane n. (Organic chemistry) Any chlorinated derivative of methane, but especially CH3Cl (methyl chloride) once…
CHLOROMETHANE n. an organic compound, methyl chloride.
HELMINTHOLOGYhelminthology n. (Zoology) The branch of zoology related to the study of helminths (parasitic worms).
HELMINTHOLOGY n. the study of parasitic worms.
HEXAMETHONIUMhexamethonium n. (Pharmacology) Synonym of hexamethonium bromide.
HEXAMETHONIUM n. either of two compounds used as ganglionic blocking agents in the treatment of hypertension.
HONEYMONTHINGHONEYMONTH v. (obsolete) to spend one's honeymoon, also HONEYMOON.
LIGHTHOUSEMANlighthouseman n. The keeper of a lighthouse.
LIGHTHOUSEMAN n. one who keeps a lighthouse.
LIGHTHOUSEMENlighthousemen n. Plural of lighthouseman.
LIGHTHOUSEMAN n. one who keeps a lighthouse.
METHYLPHENOLSMETHYLPHENOL n. a type of aromatic organic compound, aka cresol.
MONOPHOSPHATEmonophosphate n. (Chemistry) any compound containing a single phosphate unit.
MONOPHOSPHATE n. an ester of phosphoric acid.
NYCHTHEMERONSnychthemerons n. Plural of nychthemeron.
NYCHTHEMERON n. (Greek) a full period of a day and night.
PHOTOMACHINESPHOTOMACHINE n. a machine that prints copies of digital photographs.
PHYTOHORMONESphytohormones n. Plural of phytohormone.
PHYTOHORMONE n. a plant hormone, regulating growth.
THEANTHROPISMtheanthropism n. A state of being God and man.
theanthropism n. The ascription of human attributes to a deity.
THEANTHROPISM n. the belief in the union of the divine and human.
THERMOSIPHONSthermosiphons n. Plural of thermosiphon.
THERMOSIPHON n. a method of circulating a cooling liquid through a system by using the slight difference in density between the hot and cool parts.
TROCHELMINTHStrochelminths n. Plural of trochelminth.
TROCHELMINTH n. any invertebrate of the former taxonomic group Trochelminthes, which included the rotifers and gastrotrichs.
WITHHOLDMENTSwithholdments n. Plural of withholdment.
WITHHOLDMENT n. the act of withholding.

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: 106 words
  • Scrabble in French: 6 words
  • Scrabble in Spanish: 2 words
  • Scrabble in Italian: 1 word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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