| DEHORTATIONS | • dehortations n. Plural of dehortation. • DEHORTATION n. advice against something, dissuasion.
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| DELTIOLOGIST | • deltiologist n. A collector of picture postcards. • DELTIOLOGIST n. a collector of picture postcards.
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| DEONTOLOGIST | • deontologist n. (Ethics) A philosopher or other thinker who advocates or employs a deontological approach to ethics. • DEONTOLOGIST n. a student of deontology.
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| DEPORTATIONS | • deportations n. Plural of deportation. • DEPORTATION n. an act or instance of deporting.
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| DEPOSITATION | • depositation n. The act of depositing, or material that is deposited. • DEPOSITATION n. in Scots law, a bailment where one entrusts goods to another to be kept without recompense.
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| DETRITOVORES | • DETRITOVORE n. an organism that feeds on detritus. | 
| DEVOTIONISTS | • devotionists n. Plural of devotionist. • DEVOTIONIST n. one who practises devotion.
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| DIOPTOMETERS | • dioptometers n. Plural of dioptometer. • DIOPTOMETER n. an instrument for measuring ocular refraction.
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| DOMESTICATOR | • domesticator n. One who domesticates. • DOMESTICATOR n. one who domesticates.
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| ENDODONTISTS | • endodontists n. Plural of endodontist. • ENDODONTIST n. a practitioner of endodontics.
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| KETOSTEROIDS | • ketosteroids n. Plural of ketosteroid. • KETOSTEROID n. a steroid, such as cortisone or estrone, containing a ketone group.
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| OROTUNDITIES | • orotundities n. Plural of orotundity. • OROTUNDITY n. the orotund mode of intonation, also OROROTUNDITY.
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| ORTHOPAEDIST | • orthopaedist n. Alternative spelling of orthopedist. • orthopædist n. Obsolete typography of orthopaedist.
 • ORTHOPAEDIST n. a specialist in orthopaedy, also ORTHOPEDIST.
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| ORTHOPEDISTS | • orthopedists n. Plural of orthopedist. • ORTHOPEDIST n. a specialist in orthopedics, also ORTHOPAEDIST.
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| OUTDOORSIEST | • outdoorsiest adj. Superlative form of outdoorsy: most outdoorsy. • OUTDOORSY adj. (colloq.) of an outdoors inclination.
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| PERIODONTIST | • periodontist n. A dentist whose speciality is periodontics. • PERIODONTIST n. a dentist specialising in periodontics.
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| PROGLOTTIDES | • proglottides n. Plural of proglottis. • PROGLOTTID n. a segment of a tapeworm, also PROGLOTTIS.
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| TAUTOLOGISED | • tautologised v. Simple past tense and past participle of tautologise. • TAUTOLOGISE v. to use tautology, also TAUTOLOGIZE.
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