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List of 12-letter words containing

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There are 19 twelve-letter words containing D, H, I, 3O and T

ANTHEROZOOIDantherozooid n. Alternative form of antherozoid.
ANTHEROZOOID n. a motile male gamete produced in an antheridium, also ANTHEROZOID.
CHORDOTOMIESchordotomies n. Plural of chordotomy.
CHORDOTOMY n. the surgical division of a bundle of nerve fibres in the spinal cord, also CORDOTOMY.
HYPOTROCHOIDhypotrochoid n. (Geometry) A geometric curve traced by a fixed point on the radius line outside one circle which rotates…
HYPOTROCHOID n. the curve traced by a point on the radius, or radius produced, of a circle rolling within another circle.
ODONTOPHOBIAodontophobia n. An irrational fear of dentistry.
ODONTOPHOBIA n. the fear of teeth.
OPISTHODOMOIopisthodomoi n. Plural of opisthodomos.
OPISTHODOMOS n. (Greek) a portico or apartment at the back of an ancient Greek or Roman temple.
OPISTHODOMOSopisthodomos n. (Greek architecture) A porch at the rear of a temple, set against the blank back wall of the cella.
OPISTHODOMOS n. (Greek) a portico or apartment at the back of an ancient Greek or Roman temple.
ORTHODONTIASORTHODONTIA n. the rectification of crookedness in the teeth, also ORTHODONTICS.
ORTHODONTICSorthodontics n. (Medicine) A specialty of dentistry concerned with correcting misalignment of teeth.
ORTHODONTICS n. the rectification of crookedness in the teeth, also ORTHODONTIA.
ORTHODONTISTorthodontist n. An orthodontic dentist.
ORTHODONTIST n. one who practises orthodontics.
ORTHODROMICSorthodromics n. Orthodromic navigation.
ORTHODROMICS n. the act or art of sailing on a great circle, also ORTHODROMY.
ORTHODROMIESORTHODROMY n. the act or art of sailing on a great circle, also ORTHODROMICS.
ORTHOPTEROIDorthopteroid n. (Entomology) Any of the insects historically included in the order Orthoptera, including the cockroaches…
ORTHOPTEROID n. a member of the Orthoptera, cockroaches.
PHOTOIONISEDphotoionised adj. Alternative spelling of photoionized.
PHOTOIONISE v. to ionize by electromagnetic radiation, also PHOTOIONIZE.
PHOTOIONIZEDphotoionized 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.
PHOTOOXIDISEPHOTOOXIDISE v. to undergo photooxidation, also PHOTOOXIDIZE.
PHOTOOXIDIZEphotooxidize v. To oxidize photochemically.
PHOTOOXIDIZE v. to undergo photooxidation, also PHOTOOXIDISE.
PHOTOPERIODSphotoperiods n. Plural of photoperiod.
PHOTOPERIOD n. the period during every 24 hours when an organism is exposed to daylight.
TRAITORHOODSTRAITORHOOD n. the state of being a traitor.
WITHOUTDOORSwithoutdoors adv. (Archaic) outdoors.
WITHOUTDOORS adv. outdoors.

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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