All articles starting with O
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Ōarai, Ibaraki
Ōarai (大洗町) is a coastal town in Ibaraki Prefecture, Japan, about 100 km from Tokyo, known for the Aqua World aquarium with Japan's largest shark collection, Oarai Isosaki Shrine, and the Sunflower ferry to Tomakomai, Hokkaido.
Oarfish
Oarfish (Regalecus glesne, king of herrings, doomsday fish): the longest bony fish, a ribbon-shaped deep-sea lampriform reaching 8 m and 272 kg, circumglobal in tropical and temperate seas, feeding on krill by suction.
OAS1
OAS1 (2'-5'-oligoadenylate synthetase 1), human interferon-induced antiviral gene on 12q24.13; dsRNA-activated enzyme making 2-5A to activate RNase L; rs10774671 splice SNP sets p46 versus p42/p44/p48/p52 isoforms and viral susceptibility.
Oasis
Oasis is a real-time AI world model released by Decart and Etched in October 2024, generating a playable, Minecraft-style world frame-by-frame with no game engine.
Oasis
An oasis is an area made fertile by freshwater from springs or wells in an otherwise arid region, supporting agriculture, settlement, and trade, such as Egypt's Nile valley.
Oasis (2017 TV series)
Oasis (2017 TV series) is a one-hour Prime Video science fiction drama pilot based on Michel Faber's novel The Book of Strange New Things, starring Richard Madden as priest Peter Leigh; directed by Kevin Macdonald, it was never ordered to series.
Oasis (band)
Oasis, English rock band formed in Manchester in 1991, originally The Rain, led by Liam and Noel Gallagher; Britpop leaders behind Definitely Maybe and (What's the Story) Morning Glory?, split 2009, reunited for the 2025 Live '25 tour.
Oasis (오아시스) (2002 film)
Oasis (오아시스) is Lee Chang-dong's 2002 South Korean drama about ex-convict Hong Jong-du and Han Gong-ju, a woman with cerebral palsy. It won Venice's Special Director Award and the Marcello Mastroianni Award for Moon So-ri.
Oasis de la Sierra El Pilar
Oasis de la Sierra El Pilar, Ramsar site 1794, is a 180,803-hectare wetland of oases on the western slope of the Sierra del Mechudo, Baja California Sur, Mexico, designated 2 February 2008.
Oasis de Moghrar et de Tiout
Oasis de Moghrar et de Tiout, Ramsar Site 1302 in Naama province, Algeria: 195,500 ha of desert oases (Moghrar Foukani, Tahtani, and Tiout) with foggara water systems, designated 4 June 2003.
Oasis de Tamantit et Sid Ahmed Timmi
Oasis de Tamantit et Sid Ahmed Timmi, Ramsar Site no. 1061 in Adrar, Algeria, designated 2001: 95,700 ha of Saharan oases irrigated by foggara underground galleries tapping the Albian aquifer.
Oasis discography
Oasis discography: seven UK number-one studio albums (1994–2008) by the Manchester Britpop band, plus The Masterplan, Familiar to Millions, Stop the Clocks, Time Flies, 27 singles, 70 million albums sold, and 2025 reunion reissues.
Oasis du Kawar
Oasis du Kawar is a chain of oases in the Agadez region of northeastern Niger, designated a Ramsar wetland site in 2005 and known for its date palms.
Oasis du sud marocain Biosphere Reserve
Oasis du sud marocain Biosphere Reserve (RBOSM), a UNESCO MAB reserve in southern Morocco designated in 2000, covering 7,185,371 ha with 1,635,008 people, khettara-irrigated date oases, and the Ksar of Ait-Ben-Haddou World Heritage site.
Oasis Live '25 Tour
Oasis Live '25 Tour is the 2025 reunion world tour by the English rock band Oasis. It ran from July 4 to November 23, 2025, with 41 shows.
Oasis Management
Oasis Management Company is a Hong Kong-headquartered activist investment manager founded in 2002 by Seth Fischer, engaging companies in Japan on governance at Kao, Nintendo, and Tokyo Dome.
Oasis of the Seas
Oasis of the Seas is a Royal Caribbean cruise ship that was the largest ever built at its 2009 debut and introduced the seven-neighborhood design.
Oasis Petroleum
Oasis Petroleum was an independent oil and gas exploration and production company founded in 2007 and headquartered in Houston, Texas, focused on the Williston Basin of North Dakota and Montana.
Oasis-class cruise ship
The Oasis class, also called the Genesis class, is a class of Royal Caribbean cruise ships whose lead ship, Oasis of the Seas, was the world's largest in 2009.
Oasis: Don't Look Back in Anger
Oasis: Don't Look Back in Anger (2026 documentary film; DLBIA) by Dylan Southern, Will Lovelace and Steven Knight charts the Oasis Live '25 reunion tour, premiering at Venice and streaming on Disney+ and Hulu from 9 October 2026.
Oast house
An oast house, also called a hop kiln, is an English farm building used for drying hops before they are sent to breweries, common in Kent and Sussex.
Oat
Oat (Avena sativa), a hexaploid cereal grass of Poaceae, sixth in world cereal production; a secondary crop domesticated from weed in Near East wheat and barley fields, grown in cool moist climates and valued for cholesterol-lowering beta-glucan fiber.
Oat beta-glucan
Oat beta-glucan is the water-soluble, mixed-linkage fiber in oat cell walls that lowers LDL cholesterol and blood glucose, backing approved heart-health claims for intakes of about 3 g per day.
Oat diseases and pests
Oat diseases and pests are the biotic constraints on cultivated oat yield, dominated by crown rust and barley yellow dwarf virus, which can cut yields by up to 80%.
Oat hull fiber
Oat hull fiber is an insoluble dietary fiber derived from the outer hull separated from the oat groat during milling, added to baked goods, cereals, and meat products.
Oat milk
Oat milk, a plant-based beverage made from oats and water, was invented in the early 1990s by Rickard Öste at Lund University and commercialized by Oatly (founded 1994); enzyme hydrolysis, low protein, beta-glucan fiber, and barista coffee use distinguish it.
Oat protein
Oat protein (Avena sativa), also called oat protein isolate or concentrate, is a plant protein whose major storage fraction is 12S globulin; it is hypoallergenic, mildly flavored, and limited by low neutral-pH solubility.
Oates Land
Oates Land, also Oates Coast, is an Antarctic coastal sector between 155°E and 164°E in East Antarctica, discovered in 1911 by Pennell of the Terra Nova and named for Captain L.E.G. Oates of Scott's polar party.
Oath
An oath is a statement or promise made while invoking a divinity as witness and guarantor, with a sanction if the words prove false or unfulfilled.
Oath Keepers
The Oath Keepers were a far-right anti-government militia founded by Stewart Rhodes in 2009, recruiting military and police members and playing a pivotal role in the January 6, 2021, Capitol attack.