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List of 13-letter words containing

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There are 11 thirteen-letter words containing G, I, L, 4O and T

ECOTOXICOLOGYecotoxicology n. The toxicology of a substance towards a wide range of organisms or towards an ecosystem; the study of ecotoxicity.
ECOTOXICOLOGY n. the study of the destructive effect of waste materials, etc. on the environment.
EPIZOOTIOLOGYepizootiology n. The study of the dynamics and epidemiology of animal diseases.
EPIZOOTIOLOGY n. the sum of the factors controlling the occurrence of a disease or pathogen of animals.
HOMOLOGATIONShomologations n. Plural of homologation.
HOMOLOGATION n. confirmation, agreement.
ODONATOLOGIESODONATOLOGY n. the study of dragonflies.
ODONATOLOGISTodonatologist n. One who studies odonatology.
ODONATOLOGIST n. one who studies dragonflies.
ODONTOLOGICALodontological adj. (Rare) referring or pertaining to odontology; dental.
ODONTOLOGICAL adj. relating to odontology, also ODONTOLOGIC.
ODONTOLOGISTSodontologists n. Plural of odontologist.
ODONTOLOGIST n. a student of odontology.
ONOMATOLOGIESonomatologies n. Plural of onomatology.
ONOMATOLOGY n. the science of names.
ONOMATOLOGISTonomatologist n. One versed in the history of names.
ONOMATOLOGIST n. one who studies onomatology, the science of names.
PHOTOBIOLOGICphotobiologic adj. Synonym of photobiological.
PHOTOBIOLOGIC adj. relating to photobiology, also PHOTOBIOLOGICAL.
PHOTOGEOLOGICphotogeologic adj. Of, relating to, indicated by, or produced by photogeology.
PHOTOGEOLOGIC adj. relating to photogeology, also PHOTOGEOLOGICAL.

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: 30 words
  • Scrabble in French: 6 words
  • Scrabble in Spanish: 20 words
  • Scrabble in Italian: 19 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 50 words


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