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List of 12-letter words containing

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There are 16 twelve-letter words containing H, 2I, 2N and 2O

CHLORINATIONchlorination n. (Chemistry) The act or process of chlorinating something; especially, the addition of chlorine to water…
CHLORINATION n. the act of chlorinating.
CHONDROITINSchondroitins n. Plural of chondroitin.
CHONDROITIN n. any of several glycosaminoglycans occurring in sulfated form in various animal tissues such as cartilage.
DISHONOURINGdishonouring v. Present participle of dishonour.
DISHONOUR v. to deprive of honour, disgrace, also DISHONOR.
HOMINISATIONHOMINISATION n. the evolutionary development of human characteristics that differentiate hominids from their primate ancestors, also HOMINIZATION.
HOMINIZATIONhominization n. (Paleontology) The process of becoming like a human.
hominization n. (Theology) The beginning of human life, or of a deity’s life in human form.
HOMINIZATION n. the evolutionary development of human characteristics that differentiate hominids from their primate ancestors, also HOMINISATION.
HOMOGENISINGhomogenising v. Present participle of homogenise.
HOMOGENISE v. to make homogeneous, also HOMOGENIZE.
HOMOGENIZINGhomogenizing v. Present participle of homogenize.
HOMOGENIZE v. to make homogeneous, also HOMOGENISE.
HYPOLIMNIONSHYPOLIMNION n. a lower and colder layer of water in a lake.
INHARMONIOUSinharmonious adj. (Music) Not in harmony; discordant.
inharmonious adj. Lacking accord or agreement.
INHARMONIOUS adj. not harmonious.
MOONLIGHTINGmoonlighting v. Present participle of moonlight.
moonlighting n. A period of working on the side (at a secondary job), often in the evening or during the night.
MOONLIGHTING n. taking a second job.
MOONSHINIESTMOONSHINY adj. full of moonlight.
MOONSHININGSMOONSHINING n. the making of illicitly distilled whisky.
NONILLIONTHSnonillionths n. Plural of nonillionth.
NONILLIONTH n. the ordinal of nonillion.
NONRHOTICITYnonrhoticity n. (Rare) The state or condition of being nonrhotic.
NONRHOTICITY n. the state of being nonrhotic, denoting or speaking a dialect of English in which preconsonantal r's are not pronounced.
PIGEONHOLINGpigeonholing v. Present participle of pigeonhole.
pigeonholing n. The classification of disparate entities into categories, not always for the right reason.
pigeon-holing v. Present participle of pigeon-hole.
RHINOPHONIASRHINOPHONIA n. a nasal tone to the voice which is caused by a defect in the nasal passages.

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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