Skip to content A B C D E F G H I J K L M N O P Q R S T U V W X Y Z radiosphere The expanding sphere of radiation around a supernova radiosport A sport combining radio direction finding and orienteering; transmitter hunt. radiosteel Steel containing radioactive impurities introduced during the steelmaking process radiostereometric Describing any stereometric examination made via radiography radiosterilization The sterilization (either of an organism, or a surgical implement) by ionizing radiation such as X-rays or gamma rays. radiosterilize To sterilize by means of radiosterilization radiosterilized Sterilized by radiosterilization. radiostrontium any radioactive isotope of strontium, especially 9038Sr radiosulfur radioactive sulfur (especially when used as a tracer) radiosuppression The suppression of radio and TV interference from the ignition system of a motor vehicle radiosurgery The use of a directed beam of X-rays or other ionizing radiation to destroy diseased tissue. radiosurgical Relating to radiosurgery. radiosurgically In a radiosurgical manner radiosymmetric Possessing radial symmetry, symmetry across multiple lines or planes. radiosymmetrical having radial symmetry radiosymmetry Synonym of radial symmetry. radiosynovectomy synovectomy by means of radioactive isotopes radiosynoviorthesis Treatment of synovitis with radioactive isotopes radiosynthesis The automated production of radioactive compounds. radiosynthesize To synthesize via radiosynthesis radiosynthesizer A device used in radiosynthesis radiosynthetic Relating to radiosynthesis. radiot A person who is obsessed with radios and listening to the radio. radiotantalum radioactive tantalum radiotechnetium radioactive technetium. radiotechnical Relating to radio technology radiotechnology Technology involving radio waves and radiocommunication. radiotelecommunication telecommunication by means of radio radiotelegram A message, like a telegram, transmitted by wireless telegraphy. radiotelegraph wireless telegraphy radiotelegrapher A radiotelegraph operator. radiotelegraphic Relating to radiotelegraphy. radiotelegraphically By means of, or in terms of, radiotelegraphy radiotelegraphist A radiotelegraph operator. radiotelegraphy The process and techniques of sending telegrams using radio waves rather than wires. radiotelemeter A device used in radiotelemetry radiotelemetric Relating to radiotelemetry. radiotelemetrically By means of radiotelemetry radiotelephone A device that allows two-way communication by means of a radio. radiotelephonic Relating to radiotelephones. radiotelephonically By means of radiotelephony. radiotelephony the transmission of sound (in both directions) using modulated radio waves rather than wires radiotelephotography telephotography (transmission of images) via radio radiotelescopic Relating to radiotelescopy. radiotelescopy The manufacture and use of radio telescopes. radioteletype A communication system consisting of teletypewriters linked by radio. radioteletypewriter A teletypewriter connected to a radio as part of a radioteletype system. radiotellurium radioactive tellurium (tellurium-128 and tellurium-130) radioterbium radioactive terbium radioteria A store that sells radios. radiothallium radioactive thallium radiotheranostic Relating to radiotheranostics radiotheranostics theranostics related to radiotherapy radiotherapeutic Pertaining to radiotherapy. radiotherapeutically In a radiotherapeutical manner radiotherapeutics The use of radiotherapy. radiotherapeutist Synonym of radiotherapist. radiotherapist A therapist who specialises in radiotherapy radiotherapy Synonym of radiation therapy. radiothermal Relating to thermal radiation. radiothermic Synonym of radiothermal. radiothermoluminescence Thermoluminescence; the release of previously absorbed radiation upon being heated. radiothermoluminescent Of, relating to, or showing radiothermoluminescence. radiothon An extended charity appeal on the radio radiothorium The radioactive isotope thorium-228 radiothulium radioactive thulium radiotin radioactive tin radiotitanium radioactive titanium radiotolerance tolerance to radiation radiotolerant tolerant to radiation radiotoxic toxic because of its radioactivity radiotoxicity The state of being radiotoxic. radiotoxicological Of or pertaining to radiotoxicology radiotoxicology The study of radiotoxicity radiotoxin Any radiotoxic substance. radiotracer A radioactive tracer; a radiolabel radiotracing The use of a radiotracer radiotracked tracked by means of a radiotracker radiotracker A device that tracks wild animals fitted with radiocollars radiotracking The tracking of the movements of animals by means of an attached radio transmitter. radiotranslucent translucent (partially opaque) to radio waves (and X-rays) radiotransmission Transmission or sending a radio signal from a radio transmitter. radiotransmitter A radio transmitter radiotransparency The state or degree of being penetrable by X-rays. radiotransparent Exhibiting radiotransparency radiotrician A technician who builds or repairs radios. radiotriquetral Relating to the radius and the triquetrum. Radiotron A kind of vacuum tube. radiotrophic Using melanin to convert gamma radiation into chemical energy for growth radiotrophism The condition of being radiotrophic radiotropism Movement to or from ionizing radiation radiotungsten radioactive tungsten radioulna The radius and ulna considered as a unit radioulnar Relating to the radius and ulna; relating to a radioulna radiouptake The uptake of radiolabelled material by tissue radiouranium radioactive uranium. radious radiant radiovanadium radioactive vanadium radiovirotherapy A form of radiotherapy in which a radioisotope is delivered via an oncolytic virus radiovision An early television system. radiowaste radioactive waste radioxenon radioactive xenon radioytterbium radioactive ytterbium radioyttrium radioactive yttrium radiozinc radioactive zinc radiozirconium radioactive zirconium radiozoan Synonym of radiolarian. Radipole A northern suburb of Weymouth, Dorset, England, previously in Weymouth and Portland district (OS grid ref SY6681). radish A plant of the Brassicaceae family, Raphanus sativus or Raphanus raphanistrum subsp. sativus, having an edible root. radishlike Resembling or characteristic of a radish. radishy Resembling or characteristic of a radish. Radisson A surname Radithor A quack medicine consisting of distilled water and radium, claimed to cure impotence and other conditions, but actually causing radiation poisoning. radium The chemical element (symbol Ra) with an atomic number of 88. It is a soft, shiny and silvery radioactive alkaline earth metal. radiumed Containing or treated with radium. radiumization The act of treating something with radium. radiumize To treat with radium. radiumizer A device for treating water with radium, once believed to have health benefits. radiumlike Resembling or characteristic of radium. radiumtherapy The therapeutic use of radium. radius The long bone in the forearm, on the side of the thumb. radiused Having a specified type of radius. Radivoj A male given name from the Slavic languages. radix A root. radixin Synonym of RDX gene Ellipsis of radixin gene (“a human gene, for a cytoskeletal protein resembling ezrin and moesin that may be important in linking actin to the plasma membrane”). radizdat The broadcasting of samizdat by radio. Radke A surname from German. radknight Synonym of radman. Radle A surname. Radleian A pupil of Radley College. radler German-style shandy (drink of beer mixed with lemonade). Radlett A large settlement in Aldenham parish, Hertsmere district, Hertfordshire, England (OS grid ref TQ1699). Radley A village and civil parish on the Thames in Vale of White Horse district, Oxfordshire, England, originally in Berkshire (OS grid ref SU5299). radlib A progressive person who supports free-market capitalism. Radloff A surname. radman A kind of feudal tenant in England who served on horseback. Radner A surname. radness excellence Radney A surname. Radnor A sheep of a short-fleeced Welsh breed. Radnorshire An inland traditional county of Wales, bounded to the north by Montgomeryshire and Shropshire, to the east by Herefordshire, to the south by Brecknockshire and to the west by Cardiganshire. Rado A surname. Radoboj A municipality of Croatia. Radom A city in central Poland. radome Synonym of radar dome. Radomski A surname from Polish. Radomsko A city in Lodz Voivodeship, Poland. Radomsky A surname. Radomyshl A city in Zhytomyr Raion, Zhytomyr Oblast, Ukraine. radon The chemical element (symbol Rn, formerly Ro) with atomic number 86. It is an odorless, colorless, chemically inert but radioactive noble gas.