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List of 13-letter words containing

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There are 8 thirteen-letter words containing E, I, 2L, 2N, O and P

AMINOPHYLLINEaminophylline n. (Pharmacology) A bronchodilator comprising theophylline and ethylenediamine in a 2:1 ratio.
AMINOPHYLLINE n. a drug used to stimulate the heart and to dilate the air passages.
EXPONENTIALLYexponentially adv. (Mathematics, sciences) In an exponential manner.
exponentially adv. (Proscribed) rapidly, greatly.
EXPONENTIAL adv. of or relating to an exponent.
PANHELLENIONSPANHELLENION n. a council representing all the sections of the Greeks, also PANHELLENIUM.
PENICILLATIONPENICILLATION n. the state of being penicillate, like a tuft of hairs.
PHYLLOQUINONEphylloquinone n. (Biochemistry, pharmacology) Synonym of phytomenadione.
PHYLLOQUINONE n. vitamin K1, one of the fat-soluble vitamin K group, essential for normal blood coagulation.
PRAENOMINALLYPRAENOMINAL adv. of or relating to a praenomen.
PUNCHINELLOESPunchinelloes n. Plural of Punchinello.
PUNCHINELLO n. (Italian) a fat short humpbacked clown.
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 1Word.ws and WikWik.org.

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See this list for:

  • English Wiktionary: 60 words
  • Scrabble in French: 61 words
  • Scrabble in Spanish: 10 words
  • Scrabble in Italian: 35 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 29 words


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