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List of 13-letter words containing

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There are 17 thirteen-letter words containing I, N and 4O

CHRONOBIOLOGYchronobiology n. (Biology) The study of the effects of time on biological systems, especially the effects of periodicity.
CHRONOBIOLOGY n. the study of biological rhythms.
COLONOSCOPIEScolonoscopies n. Plural of colonoscopy.
COLONOSCOPY n. examination of the inside of the colon using a colonoscope, a flexible viewing instrument passed into the colon through the anus.
COMPANIONHOODcompanionhood n. The role or status of companion.
COMPANIONHOOD n. the state of being a companion.
CORROBORATIONcorroboration n. The act of corroborating, strengthening, or confirming; addition of strength; confirmation.
corroboration n. That which corroborates.
CORROBORATION n. corroboration.
GNOMONOLOGIESgnomonologies n. Plural of gnomonology.
GNOMONOLOGY n. a treatise on gnomonics.
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.
ODONTOPHOBIASodontophobias n. Plural of odontophobia.
ODONTOPHOBIA n. the fear of teeth.
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.
ONOMATOPOEIASonomatopoeias n. Plural of onomatopoeia.
onomatopœias n. Plural of onomatopœia.
ONOMATOPOEIA n. the naming of a thing or action by a vocal imitation of the sound associated with it, also ONOMATOPOESIS, ONOMATOPOIESIS.
ONOMATOPOESISonomatopoesis n. Onomatopoeia.
ONOMATOPOESIS n. onomatopoeia, also ONOMATOPOEIA, ONOMATOPOIESIS.
ONOMATOPOETIConomatopoetic adj. (Uncommon) Synonym of onomatopoeic.
ONOMATOPOETIC adj. onomatopoeic.
SOCIOECONOMICsocioeconomic adj. Alternative form of socio-economic.
socio-economic adj. Of or pertaining to a combination of social and economic factors.
SOCIOECONOMIC adj. of, relating to, or involving a combination of social and economic factors.

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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