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List of 13-letter words containing

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There are 20 thirteen-letter words containing H, L, S, T and X

EXHAUSTLESSLYexhaustlessly adv. Without running out or coming to an end.
EXHAUSTLESS adv. inexhaustible.
EXHILARATIONSexhilarations n. Plural of exhilaration.
EXHILARATION n. the action of exhilarating.
EXOPHTHALMIASexophthalmias n. Plural of exophthalmia.
EXOPHTHALMIA n. a protrusion of the eyeballs.
EXTREMOPHILESextremophiles n. Plural of extremophile.
EXTREMOPHILE n. an organism that lives under extreme environmental conditions.
HAEMATOXYLINShaematoxylins n. Plural of haematoxylin.
HAEMATOXYLIN n. a dye obtained from logwood, also HEMATOXYLIN.
HAEMATOXYLONSHAEMATOXYLON n. any thorny leguminous tree of the genus Haematoxylon, esp. the logwood, of tropical America and SW Africa, the heartwood of which yields the dye haematoxylin.
HETEROSEXUALSheterosexuals n. Plural of heterosexual.
HETEROSEXUAL n. a heterosexual person.
HEXADACTYLOUShexadactylous adj. (Zoology) Having six fingers or toes.
HEXADACTYLOUS adj. having six fingers, also HEXADACTYLIC.
HEXOBARBITALSHEXOBARBITAL n. a barbiturate used as a sedative and hypnotic.
HOMOSEXUALISThomosexualist n. (Rare, dated, often derogatory) Alternative form of homosexual.
HOMOSEXUALIST n. a homosexual.
HOMOSEXUALITYhomosexuality n. The state of being sexually attracted primarily or exclusively to persons of the same sex, sometimes…
homosexuality n. Sexual activity with a person of the same sex, sometimes (potentially offensive) restricted to same-sex…
HOMOSEXUALITY n. the state of being homosexual.
INEXHAUSTIBLEinexhaustible adj. Impossible to exhaust; unlimited.
INEXHAUSTIBLE adj. not exhaustible.
INEXHAUSTIBLYinexhaustibly adv. In an inexhaustible manner.
inexhaustibly adv. To an inexhaustible degree.
INEXHAUSTIBLE adv. not exhaustible.
LITHOLAPAXIESlitholapaxies n. Plural of litholapaxy.
LITHOLAPAXY n. the operation of crushing stone in the bladder and working it out.
METHOXYCHLORSMETHOXYCHLOR n. a relatively nontoxic organochlorine insecticide.
SEXTILLIONTHSsextillionths n. Plural of sextillionth.
SEXTILLIONTH n. the ordinal of a sextillion, a thousand raised to the seventh power.
TACHYPHYLAXEStachyphylaxes n. Plural of tachyphylaxis.
TACHYPHYLAXIS n. very rapid development of tolerance or immunity to the effects of a drug.
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.
XIPHIPLASTRALxiphiplastral adj. Relating to a xiphiplastron.
XIPHIPLASTRAL n. a type of chelonian.
XIPHIPLASTRONxiphiplastron n. The posterior, or fourth lateral plate in the plastron of a turtle.
XIPHIPLASTRON n. in chelonians, one of the plates forming the plastron, lying posterior to the hypoplastron.

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: 85 words
  • Scrabble in French: 10 words
  • Scrabble in Spanish: 1 word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: 12 words


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