All articles starting with O
9,097 articles
Out, Out—
"Out, Out—" is a 1916 narrative poem by Robert Frost about a young boy in rural Vermont who dies after a buzz saw severs his hand.
Outagamie County
Outagamie County, Wisconsin: county created February 17, 1851 from Brown and Winnebago counties, seat Appleton, Fox Cities region. 195,894 residents (2025 estimate); manufacturing-led economy, FIPS 55087.
Outaouais
Outaouais, Quebec administrative region 07 on the Ottawa River across from Ottawa; capital Gatineau. 428,751 residents (2025), service-based economy (86.7% tertiary), GDP $19.2B (2023), projected +14.3% growth 2021-2051.
Outardes 3 hydroelectric plant
Outardes 3 is a run-of-river hydroelectric plant on the Rivière aux Outardes in the Côte-Nord region of Québec, owned and operated by Hydro-Québec, commissioned in 1969.
Outback
The Outback, also known as inland Australia, is the vast, sparsely settled interior of Australia, covering roughly 81% of the continent with deserts, shrublands, and tropical savannas.
Outback Mike
Outback Mike is Michael Atkinson, Australian adventurer, filmmaker, and former ADF pilot; Alone Australia season 1 runner-up (64 days), creator of Surviving the Outback and the Modern-Day Castaway dugout-canoe reef expedition.
Outback Steakhouse
Outback Steakhouse: American casual-dining steakhouse chain with an Australian theme, founded March 1988 in Tampa by Sullivan, Basham, Gannon, and Cooper; known for the Bloomin' Onion, 'No Rules, Just Right', and ownership by Bloomin' Brands.
Outboard motor
The outboard motor, also called an outboard engine, is a self-contained boat propulsion unit bolted to the transom, combining engine, gearbox, and propeller in one tiltable unit.
Outbrain
Outbrain is a content recommendation and native advertising company founded in 2006 by Yaron Galai and Ori Lahav, known for its "Content You May Like" widgets on publishers' websites.
Outbreak (1995 film)
Outbreak (1995) is Wolfgang Petersen's Warner Bros. medical thriller, loosely based on Richard Preston's The Hot Zone, starring Dustin Hoffman and Rene Russo fighting a fictional Ebola-like Motaba virus in Cedar Creek, California; it grossed about $190 million worldwide.
Outburst flood
An outburst flood is a sudden, large release of water from a natural dam, such as a glacier-dammed lake, producing a flood far larger than the river's normal flow.
Outcast (2014 film)
Outcast is a 2014 period action film starring Nicolas Cage and Hayden Christensen as war-weary Crusaders drawn into a struggle over the imperial throne in 12th-century China.
Outcast (TV series)
Outcast (2016–2017) is a Cinemax supernatural horror drama based on Robert Kirkman and Paul Azaceta's Skybound comic, starring Patrick Fugit as possession-plagued Kyle Barnes; two 10-episode seasons.
Outcome (film)
Outcome (2026) is a dark comedy directed and co-written by Jonah Hill, starring Keanu Reeves as blackmailed Hollywood star Reef Hawk, with Cameron Diaz, Matt Bomer, and Hill; released on Apple TV April 10, 2026, it earned 27% on Rotten Tomatoes and a Metascore of 37.
Outcome reward model
An outcome reward model (ORM) is a reward model that judges a language model's reasoning solely by whether its final answer is correct, ignoring intermediate steps.
Outcome test (discrimination)
The outcome test is a statistical method for detecting discrimination that compares post-decision success rates across groups rather than decision rates, introduced by Gary Becker in 1957.
Outcome-based education
Outcome-based education (OBE) is a curriculum reform approach organizing teaching and assessment around defined learning outcomes, rooted in behaviorism and Bloom's taxonomy, championed by William Spady, and widely adopted in medical and higher education.
Outcrop
An outcrop is a visible exposure of bedrock at the Earth's surface, where rock otherwise buried beneath soil or vegetation can be observed and sampled directly.
Outcry
Outcry (2020) is a five-part Showtime true-crime docuseries directed by Pat Kondelis about Texas football star Greg Kelley's wrongful conviction for child sexual assault, his 25-year sentence, and the appeal that freed him.
OutDaughtered
OutDaughtered (OutDaughtered: Busby Quints) is a TLC reality docu-soap premiered May 10, 2016, following Adam and Danielle Busby raising the first all-female US quintuplets; ten seasons aired 2016–2024.
Outdoor emergency care
Outdoor Emergency Care (OEC) is the National Ski Patrol's pre-hospital emergency care credential for ski patrollers and other outdoor responders; an 80-120 hour course with annual refreshers, toboggan transport skills, and EMT-adapted wilderness content.
Outdoor recreation
Outdoor recreation: leisure activities in natural and open-air settings such as hiking, camping, fishing, and skiing. Record 183.2 million U.S. participants, $1.2 trillion economic output, managed via carrying capacity frameworks.
Outdoor wireless bridge
An outdoor wireless bridge is a Layer 2 networking device that connects local area networks in different buildings via radio, in point-to-point or point-to-multipoint mode.
Outer Arm (Milky Way)
The Outer Arm is the outermost spiral arm of the Milky Way, lying beyond the Perseus Arm and carrying fewer stars than the Galaxy's dominant arms.
Outer Banks
The Outer Banks (OBX) are North Carolina's chain of barrier islands from the Virginia border to Cape Lookout, site of the Roanoke Lost Colony and Cape Hatteras National Seashore, defined by migrating sand, erosion, N.C. 12, and a $2.1 billion tourism economy.
Outer Banks (TV series)
Outer Banks is a Netflix American teen action-adventure drama created by Jonas Pate, Josh Pate, and Shannon Burke, following the treasure-hunting Pogues against the Kooks; five seasons, 50 episodes, April 2020 to August 20, 2026, filmed mainly in Charleston, South Carolina.
Outer capsid protein sigma-1, C-terminal domain
The C-terminal domain of outer capsid protein sigma-1 is the globular head of the reovirus attachment protein, projecting from the virion and binding the receptor JAM-A.
Outer Hebrides
Outer Hebrides (Na h-Eileanan Siar), Scottish island chain of over 100 islands off northwest Scotland; population 26,020, 333,500 visitors in 2024, highest UK fuel poverty, strong wind energy resources.
Outer membrane lipoprotein virB7
VirB7, a small outer membrane lipoprotein of bacterial type IV secretion systems such as Agrobacterium VirB/D4, forms disulfide-linked VirB7-VirB9 heterodimers and homodimers, stabilizes the VirB7/9/10 core complex, and pilots it to the outer membrane.
Outer membrane porin F, N-terminal
Outer membrane porin F, N-terminal: residues 1-162 of OprF, the major OmpA-homologous porin of Pseudomonas aeruginosa, folding as an eight-stranded beta-barrel that forms small closed channels and passes no small solutes.