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List of 13-letter words containing

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There are 16 thirteen-letter words containing I, P, S, X and Y

ASPHYXIATIONSasphyxiations n. Plural of asphyxiation.
ASPHYXIATION n. the act of asphyxiation.
EXPANSIBILITYexpansibility n. The condition of being expansible.
EXPANSIBILITY n. the state of being expansible.
EXPEDITIOUSLYexpeditiously adv. In an expeditious manner.
EXPEDITIOUS adv. characterized by or acting promptly and efficiently.
HYPERPROSEXIAhyperprosexia n. (Medicine, rare) Excessive attention; an abnormal state in which a person concentrates on one thing…
HYPERPROSEXIA n. abnormal powers of perception, as in Australian aboriginal trackers.
HYPERPYREXIAShyperpyrexias n. Plural of hyperpyrexia.
HYPERPYREXIA n. an extremely high fever, with a temperature of 41 degrees Centigrade or above, also HYPERTHERMY.
HYPOXANTHINEShypoxanthines n. Plural of hypoxanthine.
HYPOXANTHINE n. a purine base found in plant and animal tissues that yields xanthine on oxidation.
INEXPENSIVELYinexpensively adv. In an inexpensive manner.
INEXPENSIVE adv. not expensive, also UNEXPENSIVE.
INEXPRESSIBLYinexpressibly adv. In an inexpressible manner.
INEXPRESSIBLE adv. that cannot be expressed.
PARAMYXOVIRUSparamyxovirus n. (Virology) Any member of the Paramyxoviridae family of negative-sense single-stranded RNA viruses responsible…
PARAMYXOVIRUS n. any of a group of viruses which includes the mumps and measles viruses.
PARASEXUALITYparasexuality n. (Biology) A phenomenon, involving a complex form of mitosis, whereby two cell nuclei merge without any…
PARASEXUALITY n. the state of being parasexual.
PHYCOXANTHINSPHYCOXANTHIN n. a yellow pigment found in diatoms, brown seaweeds etc.
POLYSILOXANESpolysiloxanes n. Plural of polysiloxane.
POLYSILOXANE n. any of a number of polymers which are the basis of silicone chemistry.
PYRIDOXAMINESpyridoxamines n. Plural of pyridoxamine.
PYRIDOXAMINE n. a crystalline amine of the vitamin B6 group.
TACHYPHYLAXIStachyphylaxis n. (Medicine) A rapidly decreasing response to a drug following administration of the initial doses.
TACHYPHYLAXIS n. very rapid development of tolerance or immunity to the effects of a drug.
UNEXPENSIVELYunexpensively adj. Synonym of inexpensively.
UNEXPENSIVE adv. not expensive, also INEXPENSIVE.
XIPHOPHYLLOUSxiphophyllous adj. (Botany) Having sword-shaped leaves.
XIPHOPHYLLOUS adj. having sword-shaped 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: 86 words
  • Scrabble in French: 16 words
  • Scrabble in Spanish: 12 words
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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