15-letter words containing r, a, d, i, o, u
- radio sono-buoy — a buoy equipped to detect underwater noises and transmit them by radio
- radioautography — autoradiography.
- radioimmunology — the study of biological substances or processes with the aid of antigens or antibodies labeled with a radioactive isotope.
- radiophosphorus — phosphorus 32.
- rayside-balfour — a town in S Ontario, in S Canada.
- re-adjudication — an act of adjudicating.
- rediscount rate — the rate charged by the Federal Reserve Bank to member banks for rediscounting commercial paper.
- redocumentation — The creation or revision of a semantically equivalent representation within the same relative abstraction level. The resulting forms of representation are usually considered alternate views intended for a human audience.
- reduction ratio — an expression of the number of times by which an original document has been reduced in a microcopy.
- refuse disposal — the act of disposing of rubbish and waste
- residual income — the remaining income (of a business or person) after necessary debts, expenses, etc, have been paid
- right-hand buoy — a distinctive buoy marking the side of a channel regarded as the right, or starboard, side.
- robert guiscard — Robert [French raw-ber] /French rɔˈbɛr/ (Show IPA), (Robert de Hauteville) c1015–85, Norman conqueror in Italy.
- rogation sunday — the fifth Sunday after Easter; it sees the start of the supplications that are continued during the following Monday, Tuesday and Wednesday
- roundaboutation — circumlocution
- roundaboutility — roundaboutness
- routeing domain — (networking) (US "routing") A set of routers that exchange routeing information within an administrative domain.
- sandwich course — A sandwich course is an educational course in which you have periods of study between periods of being at work.
- securicor guard — a guard who works for Securicor
- self-authorized — given or endowed with authority: an authorized agent.
- semidocumentary — a film or television programme that is fictional but includes many factual events or details
- silver quandong — an Australian tree, Elaeocarpus grandis: family Elaeocarpaceae
- sled cultivator — go-devil (def 5).
- sodium arsenite — a white or grayish-white, water-soluble, poisonous powder, NaAsO 2 , used chiefly in arsenical soaps for hides, as an insecticide, and as a weed-killer.
- sodium chlorate — a colorless, water-soluble solid, NaClO 3 , cool and salty to the taste, used chiefly in the manufacture of explosives and matches, as a textile mordant, and as an oxidizing and bleaching agent.
- sodium citrates — the sodium salts of citric acid (monosodium citrate, disodium citrate, trisodium citrate)
- sodium stearate — Sodium stearate is a salt of stearic acid used as a surfactant (= a substance that reduces the surface tension of a liquid and allows it to foam) in order to aid the solubility of hydrophobic substances in oral medicines.
- spawning ground — a place where fish deposit their eggs for fertilization
- stamping ground — a habitual or favorite haunt.
- studio portrait — a photograph of a person taken in a studio
- subsidiary coin — a coin, especially one made of silver, having a value less than that of the monetary unit.
- sulphurous acid — an unstable acid produced when sulphur dioxide dissolves in water: used as a preservative for food and a bleaching agent. Formula: H2SO3
- summer holidays — the time when children do not go to school in the summer
- superordination — Logic. the relation between a universal proposition and a particular proposition of the same quality containing the same terms in the same order.
- the daily round — the usual activities of one's day
- thought reading — mind reading.
- trading account — an account similar to a traditional bank account, holding cash and securities, and administered by an investment dealer
- training ground — an area where people prepare for sporting competitions, with activities primarily concentrating on skills and fitness
- truman doctrine — the policy of President Truman, as advocated in his address to Congress on March 12, 1947, to provide military and economic aid to Greece and Turkey and, by extension, to any country threatened by Communism or any totalitarian ideology.
- turnaround time — the total time taken between the submission of a program for execution and the return of the complete output to the customer
- ultra-modernist — very advanced in ideas, design, or techniques.
- ultrademocratic — (in the US) characteristic of a staunch member or supporter of the Democratic Party and its agenda
- ultrafastidious — extremely fastidious
- un-considerable — rather large or great in size, distance, extent, etc.: It cost a considerable amount. We took a considerable length of time to decide.
- un-romanticized — to make romantic; invest with a romantic character: Many people romanticize the role of an editor.
- unaffordability — that can be afforded; believed to be within one's financial means: attractive new cars at affordable prices.
- unconstrainedly — in an unconfined manner
- undemonstrative — not given to open exhibition or expression of emotion, especially of affection.
- under-education — to educate too little or poorly.
- underestimation — to estimate at too low a value, rate, or the like.