15-letter words containing r, a, d, i, o, s
- radio telescope — a system consisting of an antenna, either parabolic or dipolar, used to gather radio waves emitted by celestial sources and bring them to a receiver placed in the focus.
- radiophosphorus — phosphorus 32.
- radiosensitizer — a substance, as a drug, that enhances the sensitivity of tissues or cells to radiation therapy.
- ramrod straight — having a very straight figure
- random sampling — a method of selecting a sample (random sample) from a statistical population in such a way that every possible sample that could be selected has a predetermined probability of being selected.
- rayside-balfour — a town in S Ontario, in S Canada.
- read oneself in — to assume possession of a benefice by publicly reading the Thirty-nine Articles
- realized losses — Realized losses are losses which have occurred upon the sale of an asset.
- reconsideration — to consider again, especially with a view to change of decision or action: to reconsider a refusal.
- reconsolidation — an act or instance of consolidating; the state of being consolidated; unification: consolidation of companies.
- redemonstration — the act or circumstance of proving or being proved conclusively, as by reasoning or a show of evidence: a belief incapable of demonstration.
- rediscount rate — the rate charged by the Federal Reserve Bank to member banks for rediscounting commercial paper.
- refuse disposal — the act of disposing of rubbish and waste
- relational dbms — relational database
- remand prisoner — a prisoner who is sent back into custody (or sometimes admitted to bail) to await trial or continuation of their trial
- residual income — the remaining income (of a business or person) after necessary debts, expenses, etc, have been paid
- rhodesian front — the governing party in Zimbabwe (then called Rhodesia) 1962–78
- robert guiscard — Robert [French raw-ber] /French rɔˈbɛr/ (Show IPA), (Robert de Hauteville) c1015–85, Norman conqueror in Italy.
- robin redbreast — robin (defs 1, 2).
- rogation sunday — the fifth Sunday after Easter; it sees the start of the supplications that are continued during the following Monday, Tuesday and Wednesday
- rolling meadows — a city in NE Illinois, near Chicago.
- romblon islands — a group of islands of the Philippines in the Sibuyan Sea and Tablas Strait, part of the Visayan Islands.
- rowland heights — a city in SW California, near Los Angeles.
- sandwich course — A sandwich course is an educational course in which you have periods of study between periods of being at work.
- sanitary cordon — cordon sanitaire.
- satin bowerbird — the largest Australian bowerbird, Ptilonorhynchus violaceus, the male of which has lustrous blue plumage
- seaside sparrow — a species of sparrow, Ammospiza maritima, existing in two subspecies, one (Cape Sable seaside sparrow) having dark olive-drab plumage with a lighter breast and underbelly, and the other (dusky seaside sparrow) having bold black and white markings on the breast and underbelly: the dusky seaside sparrow is almost extinct.
- securicor guard — a guard who works for Securicor
- self-admiration — a feeling of wonder, pleasure, or approval.
- self-authorized — given or endowed with authority: an authorized agent.
- self-proclaimed — to announce or declare in an official or formal manner: to proclaim war.
- semidocumentary — a film or television programme that is fictional but includes many factual events or details
- shadow minister — a member of the main opposition party in Parliament who would hold ministerial office if their party were in power
- shopping arcade — a place where a number of shops are connected together under one roof
- shortwave radio — a radio that transmits or receives shortwaves.
- sidereal period — the period of revolution of a body about another with respect to one or more distant stars
- silicon carbide — a very hard, insoluble, crystalline compound, SiC, used as an abrasive and as an electrical resistor in objects exposed to high temperatures.
- silver quandong — an Australian tree, Elaeocarpus grandis: family Elaeocarpaceae
- sinistrodextral — moving or extending from the left to the right.
- sinoatrial node — a small mass of tissue in the right atrium functioning as pacemaker of the heart by giving rise to the electric impulses that initiate heart contractions.
- sled cultivator — go-devil (def 5).
- smoking-related — (of a disease, illness, etc) caused by smoking tobacco, etc
- social democrat — a person who advocates a gradual transition to socialism or a modified form of socialism by and under democratic political processes.
- social drinking — the practice of drinking alcohol occasionally and usually only in social situations
- social-drinking — a person who drinks alcoholic beverages usually in the company of others and is in control of his or her drinking.
- socratic method — the use of questions, as employed by Socrates, to develop a latent idea, as in the mind of a pupil, or to elicit admissions, as from an opponent, tending to establish a proposition.
- 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.