| AVOIRDUPOIS | • avoirdupois n. (Historical) The official system of weights used in the UK between 1856 and 1963. It had been the customary… • avoirdupois n. (Historical) The official system of weights used in the USA between 1866 and 1959.
 • avoirdupois n. (Chiefly humorous) Weight; heaviness.
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| CARDIOTONIC | • cardiotonic adj. That has a favourable (tonic) effect on the action of the heart. • cardiotonic n. Any drug or substance having a tonic effect on the heart.
 • CARDIOTONIC n. a substance that tends to increase the tonus of heart muscle.
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| CAROTINOIDS | • carotinoids n. Plural of carotinoid. • CAROTINOID n. any of a group of pigments similar to carotenes, found in plant and some animal tissues, also CAROTENOID.
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| CHIROPODIAL | • CHIROPODIAL adj. relating to chiropody. | 
| CROCODILIAN | • crocodilian n. Any reptile of the order Crocodilia; a crocodile, alligator, caiman or gavial. • crocodilian adj. Of, pertaining to, or resembling crocodiles.
 • CROCODILIAN n. any of an order of reptiles including the crocodiles, alligators, caimans, gharials, and related extinct forms.
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| INDORSATION | • indorsation n. (Scotland) An endorsement. • INDORSATION n. approval or support, also ENDORSATION.
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| OBSIDIONARY | • obsidionary adj. Obsidional; relating to a siege. • OBSIDIONARY adj. of or relating to a siege, also OBSIDIONAL.
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| ONEIRODYNIA | • oneirodynia n. A violent or disturbed imagination during sleep, as in the case of nightmares and sleepwalking. • ONEIRODYNIA n. a nightmare.
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| ORDINATIONS | • ordinations n. Plural of ordination. • ORDINATION n. the act of ordaining.
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| PERIODONTIA | • PERIODONTIA n. the branch of dentistry concerned with periodontal diseases. | 
| RADIOIODINE | • radioiodine n. (Physics, medicine) The radioactive isotope of iodine, 13153I, having a half-life of 8 days; used as… • RADIOIODINE n. a radioisotope of iodine with medical uses.
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| RADIOLOGIES | • RADIOLOGY n. the study of X-rays and their medical applications. | 
| RADIOLOGIST | • radiologist n. A person who is skilled in or practices radiology. • RADIOLOGIST n. a physician specializing in medical radiology.
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| RADIOPHONIC | • radiophonic adj. Describing sound effects created to accompany radio broadcasts as background music. • radiophonic adj. Describing a type of sound art practice that extends the established radio drama and documentary form…
 • radiophonic adj. (Obsolete) Of or pertaining to the radiophone.
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| RADIOSCOPIC | • radioscopic adj. Of or pertaining to radioscopy. • RADIOSCOPIC adj. related to radioscopy, the examination of opaque bodies by X-rays.
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| REOXIDATION | • reoxidation n. A second or subsequent oxidation (e.g. of hemoglobin). • REOXIDATION n. the process of reoxidizing.
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| SARCOIDOSIS | • sarcoidosis n. (Medicine) A multisystem disorder characterized by granulomas. • SARCOIDOSIS n. a medical condition characterized by the formation of nodules, esp. in lymph nodes and lungs.
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| SORORICIDAL | • sororicidal adj. Of or pertaining to sororicide, the killing of one’s sister. • SORORICIDAL adj. relating to sororicide, the killing of one's own sister.
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