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

CIRCUMFLEXION	• circumflexion 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.
CLINOPYROXENE	• clinopyroxene 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.
HYDROPEROXIDE	• hydroperoxide n. (Organic chemistry) any mono-substituted derivative of hydrogen peroxide - ROOH. • HYDROPEROXIDE n. a compound containing an O2H group.
HYPERPYREXIAL	• hyperpyrexial adj. Exhibiting or relating to hyperpyrexia. • HYPERPYREXIAL adj. showing hyperpyrexia, an extremely high fever.
HYPERPYREXIAS	• hyperpyrexias n. Plural of hyperpyrexia. • HYPERPYREXIA n. an extremely high fever, with a temperature of 41 degrees Centigrade or above, also HYPERTHERMY.
LITHOLAPAXIES	• litholapaxies n. Plural of litholapaxy. • LITHOLAPAXY n. the operation of crushing stone in the bladder and working it out.
NONHOMOSEXUAL	• nonhomosexual adj. Not homosexual. • nonhomosexual n. One who is not a homosexual. • NONHOMOSEXUAL n. one who is not homosexual.
ORTHOPYROXENE	• orthopyroxene 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.
PROTOGALAXIES	• protogalaxies n. Plural of protogalaxy. • PROTOGALAXY n. a galaxy in its initial state of formation.
QUADRUPLEXING	• quadruplexing n. The transmission of four separate messages on a single cable. • QUADRUPLEX v. to make quadruplex.
TETRODOTOXINS	• tetrodotoxins n. Plural of tetrodotoxin. • TETRODOTOXIN n. a deadly nerve poison found in a species of Japanese puffer fish, also TETROTOXIN.
UNORTHODOXIES	• unorthodoxies 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.

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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