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List of 15-letter words containing

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There are 16 fifteen-letter words containing I, 2N, 2O, 2T and Y

CONTEMPORANEITYcontemporaneity n. The state or characteristic of being contemporaneous.
CONTEMPORANEITY n. the state of being contemporaneous.
CONVENTIONALITYconventionality n. (Uncountable) The state of being conventional.
conventionality n. (Countable) Something conventional; a convention.
CONVENTIONALITY n. a conventional usage, practice, or thing.
CYANOETHYLATIONcyanoethylation n. (Organic chemistry) Any reaction, or treatment, with acrylonitrile, especially such treatment of cotton…
CYANOETHYLATION n. the act of introducing a cyano-ethyl group into a compound.
DEHYPNOTISATIONDEHYPNOTISATION n. the process of dehypnotising, also DEHYPNOTIZATION.
DEHYPNOTIZATIONdehypnotization n. The process of bringing somebody out of hypnotic trance.
DEHYPNOTIZATION n. the process of dehypnotizing, also DEHYPNOTISATION.
HYPOVENTILATIONhypoventilation n. (Medicine) Respiratory depression, occurring when ventilation is inadequate to perform the necessary…
HYPOVENTILATION n. abnormally decreased speed and depth of breathing.
LABYRINTHODONTSlabyrinthodonts n. Plural of labyrinthodont.
LABYRINTHODONT n. an extinct amphibian, so called from a mazy pattern on a section of its teeth.
MYLONITISATIONSMYLONITISATION n. the process of mylonitising, also MYLONITIZATION.
MYLONITIZATIONSMYLONITIZATION n. the process of mylonitizing, also MYLONITISATION.
NONCONTRIBUTORYnoncontributory adj. Describing a pension plan in which the members do not provide their own direct contributions (that is…
noncontributory adj. Not being a contributing factor (to a decision, analysis, or situation), such as not contributing to…
NONCONTRIBUTORY adj. not contributory.
NONPRODUCTIVITYnonproductivity n. Lack of productivity.
NONPRODUCTIVITY n. the state of being nonproductive.
ONTOGENETICALLYontogenetically adv. Synonym of ontogenically.
ONTOGENETIC adv. relating to ontogenesis, also ONTOGENIC.
ORIENTATIONALLYorientationally adv. With regard to orientation.
ORIENTATIONAL adv. relating to orientation.
PHYTOPLANKTONICphytoplanktonic adj. Pertaining to, or derived from, phytoplankton.
PHYTOPLANKTONIC adj. relating to phytoplankton.
TENOSYNOVITISESTENOSYNOVITIS n. inflammation of a tendon sheath.
THYROCALCITONINthyrocalcitonin n. (Biochemistry) Alternative form of calcitonin.
THYROCALCITONIN n. a hormone secreted by the thyroid gland, controlling the rate of bone destruction.

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: 128 words
  • Scrabble in French: 11 words
  • Scrabble in Spanish: 3 words
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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