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List of 12-letter words containing •••••

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There are 14 twelve-letter words containing I, N and 4O

BIOCOENOLOGY• biocoenology n. The study of biocoenoses.
• BIOCOENOLOGY n. the study of biocoenoses.
GNOTOBIOLOGY• gnotobiology n. (Biology) The study of animals in a microbe-free environment.
• GNOTOBIOLOGY n. the study of life in germfree conditions.
HOMOLOGATION• homologation n. (Organic chemistry) Any reaction that converts a compound into the next member of a homologous series…
• homologation n. (Law) Official certification.
• HOMOLOGATION n. confirmation, agreement.
NONPOISONOUS• nonpoisonous adj. Not poisonous.
• non-poisonous adj. Alternative spelling of nonpoisonous.
• NONPOISONOUS adj. not poisonous.
ODONTOLOGIES• ODONTOLOGY n. the study of teeth.
ODONTOLOGIST• odontologist n. One who studies teeth.
• ODONTOLOGIST n. a student of odontology.
ODONTOPHOBIA• odontophobia n. An irrational fear of dentistry.
• ODONTOPHOBIA n. the fear of teeth.
ONOMASIOLOGY• onomasiology n. (Linguistics) A branch of lexicology concerned with the names of concepts.
• ONOMASIOLOGY n. the branch of semantics concerned with the meanings of and meaning relations between individual words.
ONOMATOPOEIA• onomatopoeia n. (Uncountable) The property of a word of sounding like what it represents.
• onomatopoeia n. (Countable) A word that sounds like what it represents, such as "gurgle," "stutter," or "hiss".
• onomatopoeia n. (Uncountable, rhetoric) The use of language whose sound imitates that which it names.
ONOMATOPOEIC• onomatopoeic adj. Of or relating to onomatopoeia.
• onomatopoeic adj. Having the property of onomatopoeia.
• onomatopœic adj. Alternative spelling of onomatopoeic.
OPISTHOTONOS• opisthotonos n. (Medicine) Sustained tetanic spasm in which the body is bent backwards and stiffened, as produced by various diseases.
• OPISTHOTONOS n. extreme arching backwards of the spine and neck as a result of spasm of the muscles in that region, etc.
PODOCONIOSES• PODOCONIOSIS n. endemic elephantiasis of the lower legs.
PODOCONIOSIS• podoconiosis n. (Pathology) An endemic form of nonfilarial elephantiasis.
• PODOCONIOSIS n. endemic elephantiasis of the lower legs.
POGONOTOMIES• POGONOTOMY n. shaving.

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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