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List of 13-letter words containing

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There are 19 thirteen-letter words containing E, N, 2O, P, S, T and Y

GLYCOPROTEINSglycoproteins n. Plural of glycoprotein.
GLYCOPROTEIN n. any of the compounds formed by the conjugation of a protein with a substance containing a carbohydrate group other than a nucleic acid, also GLUCOPROTEIN.
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.
PHOTOSYNTHATEphotosynthate n. (Biochemistry) Any compound that is a product of photosynthesis.
PHOTOSYNTHATE n. a product of photosynthesis.
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.
PHYTONADIONESPHYTONADIONE n. phylloquinone, vitamin K1.
POLYSYNDETONSpolysyndetons n. Plural of polysyndeton.
POLYSYNDETON n. the rhetorical device of repeating a conjunction for emphasis, as in 'it was red and yellow and pink and orange and blue!'.
POSTEMBRYONALpostembryonal adj. Synonym of postembryonic.
POSTEMBRYONAL adj. subsequent to the embryonic stage of life or growth, also POSTEMBRYONIC.
POSTEMBRYONICpostembryonic adj. That follows the embryonic stage of development.
POSTEMBRYONIC adj. subsequent to the embryonic stage of life or growth, also POSTEMBRYONAL.
POSTMODERNITYpostmodernity n. The state or condition of being postmodern.
postmodernity n. Something postmodern.
POSTSECONDARYpostsecondary adj. (Education, US and Canada) Of or pertaining to education or educational institutions subsequent to secondary…
POSTSECONDARY adj. taking place after secondary education.
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.
PROTEROGYNIESPROTEROGYNY n. the development of female organs before male to avoid self-fertilization.
PROTEROGYNOUSproterogynous adj. (Botany) Having the pistil come to maturity before the stamens; protogynous.
PROTEROGYNOUS adj. exhibiting proterogyny.
PYRITOHEDRONSpyritohedrons n. Plural of pyritohedron.
PYRITOHEDRON n. a pentagonal dodecahedron.
RONTGENOSCOPYRONTGENOSCOPY n. observation by means of X-rays.
SPONTANEOUSLYspontaneously adv. In a spontaneous manner; naturally; voluntarily.
SPONTANEOUS adv. acting by its own impulse or natural law.
STENOPHYLLOUSstenophyllous adj. (Botany) Having narrow leaves.
STENOPHYLLOUS adj. with narrow leaves.

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: 141 words
  • Scrabble in French: 35 words
  • Scrabble in Spanish: 3 words
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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