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List of 15-letter words containing

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There are 18 fifteen-letter words containing E, I, O, 3T and Y

AUTHORITATIVELYauthoritatively adv. In an authoritative manner, being worthy of trust.
AUTHORITATIVE adv. having or proceeding from authority.
AUTOTETRAPLOIDYautotetraploidy n. The property of being autotetraploid.
AUTOTETRAPLOIDY n. the state of being autotetraploid.
BIOSYSTEMATISTSbiosystematists n. Plural of biosystematist.
BIOSYSTEMATIST n. one who studies biosystematics.
COINSTANTANEITYcoinstantaneity n. Coinstantaneousness.
COINSTANTANEITY n. the state of being coinstantaneous.
CONTEMPTIBILITYcontemptibility n. The quality of being contemptible.
CONTEMPTIBILITY n. the state of being contemptible.
CYTOGENETICISTScytogeneticists n. Plural of cytogeneticist.
CYTOGENETICIST n. one who studies cytogenetics.
CYTOPHOTOMETRICcytophotometric adj. Of or relating to cytophotometry, or measured using a cytophotometer.
CYTOPHOTOMETRIC adj. relating to cytophotometry.
ELECTROACTIVITYelectroactivity n. Quality or degree of being electroactive.
ELECTROACTIVITY n. the state of being electroactive.
ETHNOCENTRICITYethnocentricity n. The quality of being ethnocentric.
ETHNOCENTRICITY n. the state of being ethnocentric, also ETHNOCENTRISM.
PHOTOELASTICITYphotoelasticity n. A technique for studying and measuring the stresses and strains in an object by means of mechanical birefringence.
PHOTOELASTICITY n. the state of being photoelastic.
PHYTOTOXICITIESphytotoxicities n. Plural of phytotoxicity.
PHYTOTOXICITY n. the state of being phytotoxic.
SYNTHETISATIONSSYNTHETISATION n. the process of synthetising, also SYNTHETIZATION.
SYNTHETIZATIONSsynthetizations n. Plural of synthetization.
SYNTHETIZATION n. the process of synthetizing, also SYNTHETISATION.
SYSTEMATISATIONsystematisation n. (British spelling) Alternative form of systematization.
SYSTEMATISATION n. the act of systematising, also SYSTEMATIZATION.
SYSTEMATIZATIONsystematization n. The act of systematizing.
systematization n. A systematic organization.
SYSTEMATIZATION n. the act of systematizing, also SYSTEMATISATION.
THERMOSTABILITYthermostability n. (Uncountable) The condition of being thermostable.
thermostability n. (Countable) The extent to which something is thermostable.
THERMOSTABILITY n. the state of being thermostable.
THIRTYSOMETHINGthirtysomething n. A tricenarian: a person in their thirties, a person aged between 30 and 39 years (inclusive).
thirtysomething adj. Between 30 and 39 years of age.
thirtysomething adj. Between 30 and 39 in number.
TWENTYSOMETHINGtwentysomething n. A person whose age is between twenty and twenty-nine years, inclusive; someone in their twenties.
twentysomething num. Between twenty and thirty.
twenty-something num. Alternative form of twentysomething.

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: 151 words
  • Scrabble in French: 6 words
  • Scrabble in Spanish: 1 word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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