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All 13-letter words with as fourth to last letter

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There are 12 thirteen-letter words with X as fourth to last letter

CIRCUMFLEXIONcircumflexion n. The act of bending, or causing to assume a curved form.
circumflexion n. A winding about; a turning or fold.
CIRCUMFLEXION n. a bending round.
CLINOPYROXENEclinopyroxene n. (Mineralogy) Any pyroxene that has a monoclinic crystal structure.
CLINOPYROXENE n. a member of the pyroxene group of minerals having a monoclinic crystal structure, such as augite, diopside, or jadeite.
HYDROPEROXIDEhydroperoxide n. (Organic chemistry) any mono-substituted derivative of hydrogen peroxide - ROOH.
HYDROPEROXIDE n. a compound containing an O2H group.
HYPERPYREXIALhyperpyrexial adj. Exhibiting or relating to hyperpyrexia.
HYPERPYREXIAL adj. showing hyperpyrexia, an extremely high fever.
HYPERPYREXIAShyperpyrexias n. Plural of hyperpyrexia.
HYPERPYREXIA n. an extremely high fever, with a temperature of 41 degrees Centigrade or above, also HYPERTHERMY.
LITHOLAPAXIESlitholapaxies n. Plural of litholapaxy.
LITHOLAPAXY n. the operation of crushing stone in the bladder and working it out.
NONHOMOSEXUALnonhomosexual adj. Not homosexual.
nonhomosexual n. One who is not a homosexual.
NONHOMOSEXUAL n. one who is not homosexual.
ORTHOPYROXENEorthopyroxene n. (Mineralogy) Any pyroxene that forms orthorhombic crystals.
ORTHOPYROXENE n. a member of the pyroxene group of minerals having an orthorhombic crystal structure, such as enstatite and hypersthene.
PROTOGALAXIESprotogalaxies n. Plural of protogalaxy.
PROTOGALAXY n. a galaxy in its initial state of formation.
QUADRUPLEXINGquadruplexing n. The transmission of four separate messages on a single cable.
QUADRUPLEX v. to make quadruplex.
TETRODOTOXINStetrodotoxins n. Plural of tetrodotoxin.
TETRODOTOXIN n. a deadly nerve poison found in a species of Japanese puffer fish, also TETROTOXIN.
UNORTHODOXIESunorthodoxies n. Plural of unorthodoxy.
UNORTHODOXY n. the state of being unorthodox.

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.

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See this list for:

  • English Wiktionary: 167 words
  • Scrabble in French: 7 words
  • Scrabble in Spanish: 5 words
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: 8 words


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