7-letter words containing r, i, o
- apriori — Alternative form of a priori.
- aprotic — (of solvents) neither accepting nor donating hydrogen ions
- aration — (obsolete, agriculture) ploughing, tillage.
- arausio — a town in SE France: a small principality in the Middle Ages, the descendants of which formed the House of Orange. Pop: 27 989 (1999)
- arborio — a variety of cultivated short-grain rice with a high starch content: used especially for risotto.
- arctoid — similar to a bear
- arecibo — seaport in N Puerto Rico: pop. 100,000
- aretino — Pietro (ˈpjɛːtro). 1492–1556, Italian satirist, poet, and dramatist, noted for his satirical attacks on leading political figures
- argolis — a department and ancient region of Greece, in the NE Peloponnese. Capital: Nauplion. Pop: 102 392 (2001). Area: 2261 sq km (873 sq miles)
- argotic — a specialized idiomatic vocabulary peculiar to a particular class or group of people, especially that of an underworld group, devised for private communication and identification: a Restoration play rich in thieves' argot.
- argovie — Aargau
- arguido — A person kept for questioning who is not a formal suspect.
- arigato — (Japanese, colloquial) thank you.
- ariosos — Plural form of arioso.
- ariosto — Ludovico (ludoˈviːko). 1474–1533, Italian poet, famous for his romantic epic Orlando Furioso (1516)
- aristos — Plural form of aristo.
- arizona — a state of the southwestern US: consists of the Colorado plateau in the northeast, including the Grand Canyon, divided from desert in the southwest by mountains rising over 3750 m (12 500 ft). Capital: Phoenix. Pop: 5 580 811 (2003 est). Area: 293 750 sq km (113 417 sq miles)
- arkosic — related to arkose
- armoire — a large cabinet, originally used for storing weapons
- arriero — a mule driver
- astoria — a port in NW Oregon, near the mouth of the Columbia River: founded as a fur-trading post in 1811 by John Jacob Astor. Pop: 9660 (2003 est)
- astroid — a hypocycloid having four cusps
- auditor — An auditor is an accountant who officially examines the accounts of organizations.
- aviator — An aviator is a pilot of a plane, especially in the early days of flying.
- aviform — shaped like a bird
- avodire — a yellow hardwood from an African tree
- avoider — to keep away from; keep clear of; shun: to avoid a person; to avoid taxes; to avoid danger.
- barozzi — Giacomo [jah-kaw-maw] /ˈdʒɑ kɔ mɔ/ (Show IPA), Vignola, Giacomo da.
- barrico — a small barrel or similar container for liquids
- barrios — Justo Rufino [hoo-staw roo-fee-naw] /ˈhu stɔ ruˈfi nɔ/ (Show IPA), 1835–85, Guatemalan statesman: president of Guatemala 1873–85.
- bartoli — Cecilia. born 1966, Italian mezzo-soprano, noted for her performances in Mozart and Rossini operas
- berlioz — Hector (Louis) (ɛktɔr). 1803–69, French composer, regarded as a pioneer of modern orchestration. His works include the cantata La Damnation de Faust (1846), the operas Les Troyens (1856–59) and Béatrice et Bénédict (1860–62), the Symphonie fantastique (1830), and the oratorio L'Enfance du Christ (1854)
- bichord — (of a musical instrument) having two strings for one note
- bicolor — of two colors
- bicorne — a two-cornered cocked hat worn especially in the 18th and early 19th centuries.
- bifrost — the rainbow bridge of the gods from their realm Asgard to earth
- bighorn — a large wild sheep, Ovis canadensis, inhabiting mountainous regions in North America and NE Asia: family Bovidae, order Artiodactyla. The male has massive curved horns, and the species is well adapted for climbing and leaping
- bigotry — Bigotry is the possession or expression of strong, unreasonable prejudices or opinions.
- bimorph — an assembly of two piezoelectric crystals cemented together so that an applied voltage causes one to expand and the other to contract, converting electrical signals into mechanical energy. Conversely, bending can generate a voltage: used in loudspeakers, gramophone pick-ups, etc
- bimotor — an airplane or other vehicle that has two engines.
- bioherm — a mound of material laid down by sedentary marine organisms, esp a coral reef
- biophor — (in Weismann's theory of heredity) a hypothetical particle of the ultimate form of matter
- biotron — a climate-control chamber used to examine how living organisms respond to specific climatic conditions
- biovars — a group of microorganisms, usually bacteria, that have identical genetic but different biochemical or physiological characters.
- bipolar — suffering from bipolar manic-depressive disorder
- birddog — one of any of various breeds of dogs trained to hunt or retrieve birds.
- bistort — a Eurasian polygonaceous plant, Polygonum bistorta, having leaf stipules fused to form a tube around the stem and a spike of small pink flowers
- bit rot — (jargon) A hypothetical disease the existence of which has been deduced from the observation that unused programs or features will often stop working after sufficient time has passed, even if "nothing has changed". The theory explains that bits decay as if they were radioactive. As time passes, the contents of a file or the code in a program will become increasingly garbled. People with a physics background tend to prefer the variant "bit decay" for the analogy with particle decay. There actually are physical processes that produce such effects (alpha particles generated by trace radionuclides in ceramic chip packages, for example, can change the contents of a computer memory unpredictably, and various kinds of subtle media failures can corrupt files in mass storage), but they are quite rare (and computers are built with error detection circuitry to compensate for them). The notion long favoured among hackers that cosmic rays are among the causes of such events turns out to be a myth. Bit rot is the notional cause of software rot. See also computron, quantum bogodynamics.
- bizarro — bizarre
- bleriot — Louis (lwi). 1872–1936, French aviator and aeronautical engineer: made the first flight across the English Channel (1909)