All articles starting with O

Orr (Catch-22)

Orr is Yossarian's tentmate in Joseph Heller's 1961 novel Catch-22: a cheerful, crash-prone pilot who secretly plans his escape and rows to Sweden, embodying the 'or' of alternatives.

Orraon (Ὄρραον; Latin Horreum) was a fortified 4th-century BCE Molossian settlement in Epirus, Greece, near Ammotopos. Destroyed by Rome in 167/168 BCE, rebuilt, abandoned 31 BCE for Nicopolis; stone houses survive two stories.

Orrery

An orrery is a mechanical model of the solar system showing the positions and motions of the planets, named for Charles Boyle, the 4th Earl of Orrery.

Sep 20, 2026

Orrin Devinsky

Orrin Devinsky is an American neurologist and epileptologist who directs the NYU Comprehensive Epilepsy Center and led the trials behind the first FDA-approved cannabidiol epilepsy therapy.

Orrin Hatch

Orrin G. Hatch (1934–2022), Utah Republican senator 1977–2019, longest-serving Republican in Senate history; author of Hatch-Waxman Act, RFRA, CHIP, RECA; president pro tempore 2015–2019.

Orris root

Orris root: dried, aged rhizomes of Iris germanica, I. pallida, and I. florentina, source of violet-scented irones for perfume (orris butter) and gin flavoring; irones form only after 3–5 years of curing.

Orrorin

Orrorin, sole species Orrorin tugenensis or Millennium Man, a ~6-million-year-old Kenyan fossil hominin from the Tugen Hills discovered by Senut and Pickford, showing femoral evidence of bipedalism and debated ancestry.

Orseolia oryzae

Orseolia oryzae, the Asian rice gall midge (Cecidomyiidae), a fly whose larvae induce silver-shoot galls in rice across tropical Asia; major pest with several Indian biotypes, Gm resistance genes, and Platygaster parasitoids.

Orsingen

The Roman vicus of Orsingen was a civil settlement under the modern village of Orsingen in Baden-Württemberg, occupied from about 80 AD to around 260 AD.

Orsini family

Orsini family, ancient Roman princely house and Guelf champions of the papacy, hereditary rivals of the Colonna; produced popes Celestine III, Nicholas III, and Benedict XIII, with the dukes of Gravina surviving today.

Orsk

Orsk (Орск) is a city of about 220,000 people in Orenburg Oblast, Russia, at the mouth of the Or River, flooded in April 2024 after a dam burst.

Orsologiakos/Rosolodiacus

Orsologiakos/Rosolodiacus (Orosologia, Rosolodiaco), a Roman road station in Galatia, Turkey, cited BAtlas 63 B1, identified with Deliler Çiftliği, Ankara Province; attested by Ptolemy, the Antonine Itinerary, and the 333 AD Bordeaux Pilgrim.

Orson Bean

Orson Bean (Dallas Frederick Burrows, 1928–2020), American actor, comedian, and game-show panelist on To Tell the Truth and The Tonight Show; Tony nominee for Subways Are for Sleeping, Loren Bray on Dr. Quinn, killed in a 2020 Venice, Los Angeles traffic accident.

Orson Hodge

Orson Hodge is a fictional character on the American television series Desperate Housewives, played by Kyle MacLachlan from 2006 to 2010 as the second husband of Bree Van de Kamp.

Orson Krennic

Orson Krennic, Director of Advanced Weapons Research in Star Wars, obsessed Imperial builder of the Death Star (Project Stardust), rival of Tarkin, antagonist of Rogue One (2016) and Andor season 2, played by Ben Mendelsohn.

Orson Scott Card

Orson Scott Card, born 1951, American science fiction and fantasy author, Mormon, best known for Ender's Game (1985) and Speaker for the Dead (1986), the consecutive Hugo and Nebula double winner, also Alvin Maker, and a figure of 2013 boycott controversy.

Sep 21, 2026

Orson W. Moe

Orson W. Moe is a nephrologist and Professor of Internal Medicine and Physiology at UT Southwestern Medical Center in Dallas, known for kidney-stone research and Klotho studies in chronic kidney disease.

Orson Welles

George Orson Welles (1915–1985), American actor-director; made Citizen Kane at 25 with unprecedented RKO control; later itinerant self-financed films, Don Quixote unfinished, Other Side of the Wind premiered 2018.

Orson Welles filmography

Orson Welles filmography: the directed, written, produced, and acting credits of Orson Welles (1915–1985), from Citizen Kane (1941) through Chimes at Midnight, F for Fake, and the 2018 release of The Other Side of the Wind.

Oct 10, 2026

Orsted

Orsted, also known as Orsted A/S, is a Danish state-controlled renewable energy company and the world's leading offshore wind developer, formed as DONG Energy in 2006 and renamed in 2017.

Oct 22, 2026

Orta oyunu

Orta oyunu, "play in the middle," is a traditional Turkish improvised folk theater, related to Karagöz shadow theater, with Kavuklu and Pişekâr as its main comic characters.

Ortalis

Ortalis, the chachalacas, is a genus of Merrem, 1786 in the Cracidae (Galliformes), with about 12 American species 42–67 cm long; molecular work places it sister to curassows, and Ortalidini was conserved by ICZN Opinion 2456.

Ortalis vetula

Ortalis vetula, the plain chachalaca (chachalaca norteña), is an arboreal cracid of the Gulf-Caribbean slope from southern Texas to Costa Rica, named for its loud cha-cha-lac chorus; IUCN Least Concern, about 2 million birds.

Sep 19, 2026

Ortega family

The Ortega family of A Coruña, Spain, controls Inditex, the fast-fashion group behind Zara, founded by Amancio Ortega in 1985; his daughter Marta Ortega chairs the company.

Orteig Prize

The Orteig Prize was a $25,000 inducement prize offered in 1919 by New York hotelier Raymond Orteig for the first nonstop flight between New York and Paris, in either direction.

Orteronel

Orteronel (TAK-700, S-TAK-700) is Takeda's oral nonsteroidal selective CYP17A1 17,20-lyase inhibitor for prostate cancer; Phase III ELM-PC 4/5 and SWOG-1216 failed overall survival endpoints and development ended in 2014.

Orthe

Orthe (Ὄρθη, also Orthos/Ortha) was an ancient Thessalian city named in Iliad 2.739, identified with ruins near Kedros and Damasi, Larisa, Greece; distinct from the French pays d'Orthe and the Sarthe stream.

Orthe/Phalanna

Orthe/Phalanna: ancient Thessalian names linked by Strabo, who called Orthe the acropolis of the Perrhaebian city Phalanna near Tyrnavos; site, coins, and 171 BC battle.