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List of 13-letter words containing

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

CYCLOPROPANEScyclopropanes n. Plural of cyclopropane.
CYCLOPROPANE n. a flammable gaseous saturated cyclic hydrocarbon sometimes used as a general anesthetic.
HYPERBOLAEONSHYPERBOLAEON n. a term in in Greek prosody.
LARYNGOSCOPESlaryngoscopes n. Plural of laryngoscope.
LARYNGOSCOPE n. an instrument for examining the interior of the larynx.
NARCOHYPNOSESNARCOHYPNOSIS n. the use of narcotics to produce hypnosis.
ONYCHOPHAGIESONYCHOPHAGY n. the habit of biting one's fingernails.
PHARYNGOSCOPEpharyngoscope n. An instrument used to examine the pharynx.
PHARYNGOSCOPE n. an instrument for inspecting the pharynx.
PHOTOSYNTHATEphotosynthate n. (Biochemistry) Any compound that is a product of photosynthesis.
PHOTOSYNTHATE n. a product of photosynthesis.
PHYTONADIONESPHYTONADIONE n. phylloquinone, vitamin K1.
POLYDAEMONISMpolydaemonism n. Alternative form of polydemonism.
POLYDAEMONISM n. the belief in and worship of numerous supernatural powers, also POLYDEMONISM.
POLYGONACEOUSpolygonaceous adj. (Botany) Of or pertaining to a family of apetalous plants, Polygonaceae, of which the knotweeds of the…
POLYGONACEOUS adj. belonging to the family Polygonaceae, knotgrasses.
POLYSILOXANESpolysiloxanes n. Plural of polysiloxane.
POLYSILOXANE n. any of a number of polymers which are the basis of silicone chemistry.
POSSESSIONARYpossessionary adj. Of or pertaining to possession.
POSSESSIONARY adj. relating to possession, also POSSESSIONAL.
POSTEMBRYONALpostembryonal adj. Synonym of postembryonic.
POSTEMBRYONAL adj. subsequent to the embryonic stage of life or growth, also POSTEMBRYONIC.
POSTSECONDARYpostsecondary adj. (Education, US and Canada) Of or pertaining to education or educational institutions subsequent to secondary…
POSTSECONDARY adj. taking place after secondary education.
PROCESSIONARYprocessionary adj. Of, pertaining to, or used in a procession.
processionary n. Any of several moths or caterpillars of the subfamily Thaumetopoeinae.
PROCESSIONARY n. a kind of moth.
PROTEOGLYCANSproteoglycans n. Plural of proteoglycan.
PROTEOGLYCAN n. any of a class of glycoproteins of high molecular weight that are found esp. in the extracellular matrix of connective tissue.
SPONTANEOUSLYspontaneously adv. In a spontaneous manner; naturally; voluntarily.
SPONTANEOUS adv. acting by its own impulse or natural law.

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: 131 words
  • Scrabble in French: 24 words
  • Scrabble in Spanish: 1 word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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