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List of 13-letter words containing

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There are 9 thirteen-letter words containing CTOS

FRACTOSTRATUSFRACTOSTRATUS n. a type of cloud.
GALACTOSAEMIAgalactosaemia n. Alternative spelling of galactosemia.
GALACTOSAEMIA n. the presence of galactose in the blood, also GALACTOSEMIA.
GALACTOSAEMICgalactosaemic adj. (Medicine) Relating to galactosaemia.
GALACTOSAEMIC adj. relating to galactosaemia, the presence of galactose in the blood, also GALACTOSEMIC.
GALACTOSAMINEgalactosamine n. (Chemistry) an amino derivative of the sugar galactose; found in glycolipids and in mucopolysaccharides.
GALACTOSAMINE n. an amino derivative of galactose that occurs in cartilage.
GALACTOSEMIASgalactosemias n. Plural of galactosemia.
GALACTOSEMIA n. the presence of galactose in the blood, also GALACTOSAEMIA.
GALACTOSIDASEgalactosidase n. (Biochemistry) Any of several enzymes that catalyze the hydrolysis of a galactoside.
GALACTOSIDASE n. an enzyme (as lactase) that hydrolyzes a galactoside.
OCTOSYLLABICSoctosyllabics n. The use of octosyllabic lines in poetry.
OCTOSYLLABIC n. an octosyllabic line.
OCTOSYLLABLESoctosyllables n. Plural of octosyllable.
OCTOSYLLABLE n. a word or line of eight syllables.
PROCTOSCOPIESproctoscopies n. Plural of proctoscopy.
PROCTOSCOPY n. examination by use of a proctoscope, an instrument for examining the rectum.

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: 42 words
  • Scrabble in French: 3 words
  • Scrabble in Spanish: 6 words
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: 20 words


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