All articles starting with O
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Osram
Osram is a German lighting brand registered as a lamp trademark in 1906, spun off from Siemens in 2013, and taken over by the Austrian sensor maker ams in 2020.
Osric Chau
Osric Chau, born 1986 in Vancouver, is a Canadian actor and producer known as Kevin Tran on Supernatural and Ryan Choi in the Arrowverse; wushu-trained, now producing films and building an entertainment tech startup.
Osroene
Osroene, also known as مملكة الرها, was a small kingdom of northern Mesopotamia with its capital at Edessa, ruled by the Abgarid dynasty from about 132 BC.
Osroes I of Parthia
Osroes I, also rendered Chosroes, was a king of the Parthian Empire from about 109 to 129, whose installing a king in Armenia provoked Trajan's Parthian War.
OSS 117: Cairo, Nest of Spies
OSS 117: Cairo, Nest of Spies (OSS 117, Le Caire nid d'espions) is a 2006 French spy comedy by Michel Hazanavicius starring Jean Dujardin as bumbling agent Hubert Bonisseur de la Bath in 1955 Cairo, based on Jean Bruce's novels that predate James Bond.
OSS 117: Lost in Rio
OSS 117: Lost in Rio (OSS 117 : Rio ne répond plus) is a 2009 French spy comedy by Michel Hazanavicius, the sequel to Cairo, Nest of Spies, starring Jean Dujardin as agent Hubert Bonisseur de la Bath hunting a Nazi blackmailer in 1967 Rio.
OSS study
OSS study (NCT07453901): The Multicentre Prospective Observational Study on the Management of Septic Shock, a 5,000-patient prospective cohort led by Xavier Monnet at Bicetre Hospital, describing real-world septic shock treatment, monitoring practices, and guideline adherence from October 2026.
Ossa Chasma
Ossa Chasma: IAU-approved (1982) chasma on Saturn's moon Mimas, 95 km across, centered at -23.56°, 303.75°; named for Mount Ossa of Greek myth; reinterpreted as a group of quasi-parallel lineaments.
Ossaia
Ossaia (Ossaia–La Tufa) is a Roman villa site near Cortona, Tuscany, on a via Cassia branch. Built late Republican, owned by the Vibii Pansae then the imperial fiscus, occupied to the 5th century AD.
Ossan's Love Thailand (รักนี้ให้ "นาย")
Ossan's Love Thailand (รักนี้ให้ "นาย") is a 2025 GMMTV-TV Asahi Thai BL romantic comedy remaking Japan's Ossan's Love, starring Earth and Mix; 12 episodes on GMM25, TELASA, and YouTube, January to March 2025.
Osseointegrated prosthetic limb
An osseointegrated prosthetic limb is an artificial arm or leg attached directly to the skeleton by a titanium implant passing through the skin, replacing the socket.
Osseointegration
Osseointegration is the direct structural and functional connection between living bone and a load-carrying implant, a term coined by Per-Ingvar Brånemark, who discovered it accidentally in 1952.
Ossessione
Ossessione (Obsession), Luchino Visconti's 1943 debut feature, is an unofficial adaptation of James M. Cain's The Postman Always Rings Twice set in the Po Valley, acknowledged as the first Italian neorealist film, censored and destroyed by Fascist authorities but preserved in a hidden negative.
Ossetia (Ирыстон)
Ossetia (Ирыстон) is a central Caucasus region split into North Ossetia-Alania in Russia and South Ossetia in Georgia, homeland of the Alan-descended, Iranian-speaking Ossetians; South Ossetia is de facto independent, recognized mainly by Russia since the 2008 war.
Ossetian language
Ossetian (Ossetic, Iron ævzag) is a Northeastern Iranian language of the central Caucasus, descended from Alanic, with Iron and Digor dialects, about 500,000 speakers, Cyrillic script, official status in North and South Ossetia, and UNESCO 'vulnerable' status.
Ossetians (ирæттæ)
Ossetians (ирæттæ) are an Iranian-speaking people of the central Caucasus, the only descendants of the medieval Alans of Scytho-Sarmatian steppe stock, speaking the Eastern Iranian Ossetic language with Digor and Iron dialects.
Ossewabrandwag
The Ossewabrandwag (OB) was an Afrikaner nationalist mass movement in South Africa, founded in Bloemfontein in 1939, whose Stormjaers wing sabotaged the Smuts government during World War II.
Ossi di seppia
Ossi di seppia ("cuttlefish bones") is the first poetry collection of Italian poet Eugenio Montale, published in Turin in 1925 and later seen as a foundational work of twentieth-century Italian poetry.
Ossi Reichert
Ossi Reichert (Rosa Reichert, 1925–2006), German alpine skier from Sonthofen; 1952 Oslo slalom silver and 1956 Cortina giant slalom gold for the unified German team; later hotel manager.
Ossian
Ossian, also Oisín, is the purported third-century Gaelic bard behind James Macpherson's Poems of Ossian (1760–1773), a famous literary forgery that shaped European Romanticism despite the authenticity controversy.
Ossian Aschan
Adolf Ossian Aschan (1860–1939) was a Finnish organic chemist and politician, professor of chemistry at the University of Helsinki from 1908 to 1927 and a member of Parliament in 1910–1911.
Ossicles
Ossicles (auditory ossicles): the malleus, incus, and stapes, three tiny chained bones of the mammalian middle ear that carry and amplify eardrum vibrations to the oval window; smallest bones in the body.
Ossicular Prosthesis
Ossicular prosthesis: an implant replacing one or more middle ear ossicles, made as PORP (drum-to-stapes) or TORP (drum-to-footplate) devices in titanium, hydroxyapatite, or autologous material for conductive hearing loss.
Ossicular replacement
Ossicular replacement, or ossiculoplasty, is a middle-ear operation that implants a prosthesis to rebuild the ossicular chain, restoring sound conduction between the tympanic membrane and the oval window.
Ossiculoplasty
Ossiculoplasty is a middle-ear operation that rebuilds the ossicular chain to reduce conductive hearing loss, closing the air–bone gap to 20 dB or less in roughly 60 to 80% of cases.
Ossie Davis
Ossie Davis (Raiford Chatman Davis, 1917–2005), American actor, playwright, and director; husband of Ruby Dee; wrote Purlie Victorious, directed Cotton Comes to Harlem, eulogized Malcolm X, won Emmy, Grammy, National Medal of Arts.
Ossies Surf Shop
Ossies Surf Shop, Newport, Oregon surf shop founded 1998 at Otter Rock, run by Dan Hasselschwert at Agate Beach; lessons, rentals, ding repair, surf cams, and community programs.
Ossification
Ossification (osteogenesis): bone formation via intramembranous ossification (direct from mesenchyme; skull, face, clavicles) and endochondral ossification (cartilage template replaced; long bones), starting in the embryonic sixth to seventh week, plus pathologic heterotopic ossification.
Ossification of spinal ligaments
Ossification of spinal ligaments (OSL, 脊柱靭帯骨化症), including OPLL and OLF, is heterotopic bone formation in spinal ligaments causing cord compression; most common in East Asian men over 50, managed by decompression surgery when symptomatic.
Ossifying fibromyxoid tumor
Ossifying fibromyxoid tumor (OFMT), a rare soft tissue neoplasm of uncertain differentiation first described by Enzinger in 1989, featuring a peripheral bone rim, S100/desmin coexpression, and PHF1 gene fusions in 50-85% of cases.