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There are 15 thirteen-letter words containing H, 2T and X

ANTHOXANTHINSanthoxanthins n. Plural of anthoxanthin.
ANTHOXANTHIN n. a yellow pigment in plants.
CANTHAXANTHINcanthaxanthin n. (Organic chemistry) A xanthophyll pigment found in many plants and animals.
CANTHAXANTHIN n. a naturally occurring carotenoid used esp. as a color additive for food, also CANTHAXANTHINE.
ETHOXYETHANESethoxyethanes n. Plural of ethoxyethane.
ETHOXYETHANE n. a type of ether, aka diethyl ether, an isomer of butanol.
EXANTHEMATOUSexanthematous adj. Of or pertaining to exanthem.
EXANTHEMATOUS adj. of or like an exanthem, a skin eruption, esp. accompanied by fever, also EXANTHEMATIC.
EXHIBITIONISTexhibitionist n. One who attempts to draw attention to himself or herself by his or her behaviour.
exhibitionist n. One who exposes his or her genitalia (or female nipples) in public.
exhibitionist n. Synonym of exhibitioner (“student who is awarded an exhibition”).
EXOTHERMICITYexothermicity n. (Chemistry, physics, uncountable) The quality or state of being exothermic.
exothermicity n. (Countable) The release of heat during an exothermic reaction.
EXOTHERMICITY n. the state of being exothermic.
EXTINGUISHANTextinguishant n. Extinguisher, especially a fire extinguisher.
extinguishant n. An extinguishing medium such as water, chemical powders, gases (CO2,Halon etc).
extinguishant adj. That serves to extinguish.
HETEROSEXISTSheterosexists n. Plural of heterosexist.
HETEROSEXIST n. one who believes that homosexuality is a perversion.
METHOTREXATESmethotrexates n. Plural of methotrexate.
METHOTREXATE n. a drug used in the treatment of cancer.
PHOTOTOXICITYphototoxicity n. Any adverse effect due to exposure to light, especially such effects on the skin.
PHOTOTOXICITY n. the state of being phototoxic.
PHYTOTOXICITYphytotoxicity n. (Uncountable) The condition of being phytotoxic.
phytotoxicity n. (Countable) A measure of the extent to which something is phytotoxic.
PHYTOTOXICITY n. the state of being phytotoxic.
SEXTILLIONTHSsextillionths n. Plural of sextillionth.
SEXTILLIONTH n. the ordinal of a sextillion, a thousand raised to the seventh power.
ULTRAORTHODOXultraorthodox adj. Very orthodox, chiefly among Jewish sects.
ultra-Orthodox adj. (Of a Jew) Very strictly observant; Haredi; being either Hasidic or Litvish (Misnagdic).
ULTRAORTHODOX adj. extremely orthodox.
XANTHOPTERINExanthopterine n. Alternative form of xanthopterin.
XANTHOPTERINE n. a yellow pigment obtainable from the wings of yellow butterflies and the urine of mammals, also XANTHOPTERIN.
XANTHOPTERINSxanthopterins n. Plural of xanthopterin.
XANTHOPTERIN n. a yellow pigment obtainable from the wings of yellow butterflies and the urine of mammals, also XANTHOPTERINE.

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: 150 words
  • Scrabble in French: 9 words
  • Scrabble in Spanish: 2 words
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: 4 words


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