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There are 6 thirteen-letter words containing E, I, N, 3O and 2P

ENDOPOLYPLOIDendopolyploid adj. Exhibiting or relating to endopolyploidy.
endopolyploid n. Any organism that exhibits endopolyploidy.
ENDOPOLYPLOID adj. relating to endopolyploidy.
NINCOMPOOPERYnincompoopery n. The beliefs and behaviours of a nincompoop; folly; idiocy.
NINCOMPOOPERY n. the state of being a nincompoop.
PROPORTIONATEproportionate adj. In proportion; proportional; commensurable.
proportionate adj. Harmonious and symmetrical.
proportionate v. (Transitive) To make proportionate.
PROPOSITIONEDpropositioned v. Simple past tense and past participle of proposition.
PROPOSITION v. to make a proposal to.
SIPHONOPHORESsiphonophores n. Plural of siphonophore.
SIPHONOPHORE n. a marine creature, colonial in habit.
SPOROPOLLENINsporopollenin n. (Botany) A combination of biopolymers, observed in the exine layer of the spore and pollen wall.
SPOROPOLLENIN n. a polymer that comprises the exine (outer layer of the wall) of spores and pollen grains.

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 WikWik.org and 1Word.ws.

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See this list for:

  • English Wiktionary: 48 words
  • Scrabble in French: 15 words
  • Scrabble in Spanish: 8 words
  • Scrabble in Italian: 26 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 14 words


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