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List of 12-letter words containing

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There are 12 twelve-letter words containing 2O, P, R and 3T

LITHOTRIPTORlithotriptor n. Alternative spelling of lithotripter.
LITHOTRIPTOR n. a device that crushes stones in the bladder by ultrasound, also LITHONTRIPTOR, LITHOTRIPTER, LITHOTRITE, LITHOTRITOR.
OPTOMETRISTSoptometrists n. Plural of optometrist.
OPTOMETRIST n. an ophthalmic optician; a person qualified to practise optometry.
ORTHOPTERISTorthopterist n. An entomologist who specialises in orthopters.
ORTHOPTERIST n. a student of insects.
PHOTOMETRISTphotometrist n. A specialist in photometry.
PHOTOMETRIST n. one who practises photometry, that branch of science which treats of the measurement of the intensity of light.
PHOTOSETTERSphotosetters n. Plural of photosetter.
PHOTOSETTER n. an apparatus for photosetting.
POTENTIATORSpotentiators n. Plural of potentiator.
POTENTIATOR n. one who potentiates.
PROSTITUTIONprostitution n. Engaging in sexual activity with another person for pay.
prostitution n. (By extension) Engaging in sexual activity with another person in exchange for goods (not necessarily…
prostitution n. (By extension) Debasement for profit or impure motives.
PROSTITUTORSprostitutors n. Plural of prostitutor.
PROSTITUTOR n. one who prostitutes.
PROTECTORATEprotectorate n. Government by a protector; especially, the government of England, Scotland, and Ireland by Oliver Cromwell.
protectorate n. The authority assumed by a superior power over an inferior or a dependent one, whereby the former protects…
protectorate n. An autonomous territory that is protected diplomatically or militarily against third parties by a stronger…
PROTESTATIONprotestation n. A formal solemn objection or other declaration.
protestation n. (Law, historical) A declaration in common-law pleading, by which the party interposes an oblique allegation…
PROTESTATION n. an avowal or solemn declaration.
TROPHOTACTICTROPHOTACTIC adj. relating to trophotaxis, chemotaxis and chemotropism where the stimulating substance is food.
TROPOSCATTERtroposcatter n. Tropospheric scatter.
TROPOSCATTER n. the propagation of radio waves by using irregularities in the troposphere to scatter the signals beamed up by means of high-powered UHF transmitters and parabolic antennas.

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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