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

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There are 18 twelve-letter words containing H, 2I, 3O and T

HISTORIOLOGY• historiology n. (Obsolete) a discourse on history.
• HISTORIOLOGY n. the study of history.
OLIGOTROPHIC• oligotrophic adj. (Physiology, of a diet) deficient in nutrition (providing little nourishment).
• oligotrophic adj. (Biology, of a body of water) being poor in nutrients and minerals and therefore not having an excessive…
• oligotrophic adj. (Geography, of a wetland) deficient in plant nutrients, such as nitrogen or phosphorus.
OOPHORITISES• OOPHORITIS n. inflammation of the ovaries.
OPHIOLOGISTS• ophiologists n. Plural of ophiologist.
• OPHIOLOGIST n. a student of ophiology.
OPISTHODOMOI• opisthodomoi n. Plural of opisthodomos.
• OPISTHODOMOS n. (Greek) a portico or apartment at the back of an ancient Greek or Roman temple.
OPISTHOTONIC• opisthotonic adj. Relating to opisthotonus.
• OPISTHOTONIC adj. of or like opisthotonos, extreme arching backwards of the spine and neck as a result of spasm of the muscles in that region.
ORNITHOLOGIC• ornithologic adj. Of or relating to ornithology; ornithological.
• ORNITHOLOGIC adj. relating to ornithology, also ORNITHOLOGICAL.
PHOTOFISSION• photofission n. (Nuclear physics) Nuclear fission as the result of the absorption of a gamma ray or other high-energy photon.
• photofission v. (Nuclear physics) To undergo, or cause to undergo, photofission.
• PHOTOFISSION n. nuclear fission induced by gamma rays.
PHOTOIONISED• photoionised adj. Alternative spelling of photoionized.
• PHOTOIONISE v. to ionize by electromagnetic radiation, also PHOTOIONIZE.
PHOTOIONISES• PHOTOIONISE v. to ionize by electromagnetic radiation, also PHOTOIONIZE.
PHOTOIONIZED• photoionized v. Simple past tense and past participle of photoionize.
• photoionized adj. Subject to, or produced by photoionization.
• PHOTOIONIZE v. to ionize by electromagnetic radiation, also PHOTOIONISE.
PHOTOIONIZES• photoionizes v. Third-person singular simple present indicative form of photoionize.
• PHOTOIONIZE v. to ionize by electromagnetic radiation, also PHOTOIONISE.
PHOTOOXIDISE• PHOTOOXIDISE v. to undergo photooxidation, also PHOTOOXIDIZE.
PHOTOOXIDIZE• photooxidize v. To oxidize photochemically.
• PHOTOOXIDIZE v. to undergo photooxidation, also PHOTOOXIDISE.
STOICHIOLOGY• stoichiology n. The part of physiology that deals with the elements, or principles, composing animal tissues.
• stoichiology n. (Logic) The doctrine of the elementary requisites of mere thought.
• stoichiology n. The statement or discussion of the first principles of any science or art.
TOXICOPHOBIA• toxicophobia n. A morbid fear of poisons or being poisoned.
• TOXICOPHOBIA n. the morbid fear of poisoning, also TOXIPHOBIA.
TROPHOBIOSIS• trophobiosis n. (Zoology) A symbiotic association in which one organism obtains or provides food for another.
• TROPHOBIOSIS n. exchange of nutriment in symbiotic relationship.
TROPHOBIOTIC• trophobiotic adj. Of or pertaining to trophobiosis.
• TROPHOBIOTIC adj. relating to trophobiosis, mutual exchange of nutriment in symbiosis.

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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