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There are 20 thirteen-letter words containing C, E, N, 3O, P and T

CHROMOPROTEINchromoprotein n. (Biochemistry) Any protein, such as haemoglobin, that has a metal-containing pigmented group such as haem.
CHROMOPROTEIN n. any of various proteins (as hemoglobins, carotenoids, or flavoproteins) having a pigment as a prosthetic group.
CONCORPORATEDconcorporated v. Simple past tense and past participle of concorporate.
CONCORPORATE v. (archaic) to unite in one body.
CONCORPORATESconcorporates v. Third-person singular simple present indicative form of concorporate.
CONCORPORATE v. (archaic) to unite in one body.
COUNTERPROOFScounterproofs n. Plural of counterproof.
COUNTERPROOF n. an inverted impression obtained from a newly printed proof of an engraving, by laying it, while the ink is still wet, upon plain paper, and passing it through the press.
DECOMPOSITIONdecomposition n. A biological process through which organic material is reduced to e.g. compost.
decomposition n. The act of taking something apart, e.g. for analysis.
decomposition n. The splitting (of e.g. a matrix, an atom, or a compound) into constituent parts.
IONTOPHORETICiontophoretic adj. Of or pertaining to iontophoresis.
IONTOPHORETIC adj. relating to iontophoresis.
NANOCOMPOSITEnanocomposite n. Any composite material one or more of whose components is some form of nanoparticle; more often consists…
NONCOMPETITORnoncompetitor n. One who is not a competitor.
NONCOMPETITOR n. one who is not a competitor.
NONCOMPLETIONnoncompletion n. Lack of completion; failure to finish.
NONCOMPLETION n. failure to complete something.
NONCOOPERATORnoncooperator n. A person who does not cooperate.
NONCOOPERATOR n. one who does not cooperate.
ONEIROSCOPISToneiroscopist n. One who interprets dreams.
ONEIROSCOPIST n. one who practises oneiroscopy.
ONOMATOPOETIConomatopoetic adj. (Uncommon) Synonym of onomatopoeic.
ONOMATOPOETIC adj. onomatopoeic.
PALEONTOLOGICpaleontologic adj. Pertaining to paleontology; characteristic of paleontology.
PALEONTOLOGIC adj. relating to paleontology, also PALEONTOLOGICAL.
PHOTOELECTRONphotoelectron n. (Physics) An electron ejected from the surface of a material by the photoelectric effect.
PHOTOELECTRON n. an electron released from a surface by a photon.
PHOTOREACTIONphotoreaction n. (Chemistry) a photochemical reaction.
PHOTOREACTION n. a photochemical reaction.
POLYCOTYLEDONpolycotyledon n. (Botany) A plant that has many, or more than two, cotyledons in the seed.
POLYCOTYLEDON n. any of various plants, esp. gymnosperms, that have or appear to have more than two cotyledons.
RECOMPOSITIONrecomposition n. Composition again or anew; the process or result of recomposing.
RECOMPOSITION n. the act of recomposing.
RONTGENOSCOPERONTGENOSCOPE n. an apparatus for examining patients by use of X-rays, also ROENTGENOSCOPE.
RONTGENOSCOPYRONTGENOSCOPY n. observation by means of X-rays.
TROPOCOLLAGENtropocollagen n. (Biochemistry) A component of fibres of collagen in which three polypeptide chains are coiled around each other.
TROPOCOLLAGEN n. a subunit of collagen fibrils consisting of three polypeptide strands arranged in a helix.

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: 129 words
  • Scrabble in French: 28 words
  • Scrabble in Spanish: 24 words
  • Scrabble in Italian: 52 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 31 words


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