All articles starting with O
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Omenaa Mensah
Omenaa Mensah, full name Amma Omenaa Mensah, is a Polish philanthropist and entrepreneur who founded the Omenaa Foundation in 2014 and created the TOP CHARITY art auction.
Omentectomy
Omentectomy is surgery to remove all or part of the greater omentum, the fatty apron of tissue hanging from the stomach, performed mainly during cancer surgery.
Omentopexy
Omentopexy is a surgical technique that mobilizes the greater omentum on its gastroepiploic blood supply and transfers it to cover organs, fill infected spaces, or reinforce repairs.
Omentoplasty
Omentoplasty is a surgical procedure in which the greater omentum is transposed as a vascularized flap to fill defects, control infection, close bronchopleural fistulas, and treat lymphedema.
Omeprazole
Omeprazole (Losec, Prilosec) is the first proton-pump inhibitor, an Astra-developed prodrug that irreversibly blocks the gastric H+/K+-ATPase; synthesized 1979, US approval 1989, world's best-selling drug in the late 1990s, precursor of esomeprazole.
Omer
Omer, Latin Audomarus, was a monk of Luxeuil who became the first bishop of Thérouanne around 639, leading the Christianization of northern Gaul; Saint-Omer is named for him.
Omer Ahmed Bokhari
Omer Ahmed Bokhari, also known as Syed Omer Ahmed Bokhari, is a three-star general of the Pakistan Army serving as Corps Commander Peshawar since May 2024.
Ömer Faruk Aran
Ömer Faruk Aran (born 1995, İzmir) is a Turkish actor, a Haliç University Conservatory graduate, known as Alaeddin Bey in Kuruluş: Osman (2023–2025) and Kuruluş: Orhan; earlier roles include Destan and Al Sancak.
Ömer Faruk Tekbilek
Ömer Faruk Tekbilek, also known as Omar Faruk Tekbilek, is a Turkish multi-instrumentalist born in 1951 in Adana who plays the ney, zurna, oud, and bağlama.
Omer Fedi (עומר פדי)
Omer Fedi (עומר פדי), born 2000, is a Tel Aviv-born, Los Angeles-based songwriter, producer, and guitarist behind STAY, APT., MONTERO, Unholy, and Mood; distinct from the artists Feddi, Fedi, and Fedo.
Ömer Koç
Ömer Koç, born in Ankara in 1962, is a Turkish businessman and grandson of Vehbi Koç who has chaired Koç Holding, Turkey's largest industrial group, since 2016.
Ömer Lutfi Efendi
Ömer Lutfi Efendi, known as Bodrumlu Ömer Lütfi Efendi (c. 1817–1897), was an Ottoman religious scholar who served as Shaykh al-Islam from 1889 to 1891.
Omer Priel
Omer Priel is an Israeli technology executive who co-founded the payments company Rapyd in 2016 with Arik Shtilman and Arkady Karpman, serving in business development and general management roles.
Omer Reingold
Omer Reingold is a theoretical computer scientist who holds the Rajeev Motwani Professorship at Stanford University, known for the zig-zag graph product and his 2005 proof that SL equals L.
Ömer Seyfettin
Ömer Seyfettin (1884–1920) was a Turkish writer and former army officer regarded as a founder of the modern Turkish short story, writing about 150 stories in a plain style.
Omer Shem Tov (עומר שם טוב)
Omer Shem Tov (עומר שם טוב), an Israeli from Herzliya, was taken hostage by Hamas at the Nova music festival on October 7, 2023, held alone underground in Gaza tunnels for 505 days, and released on February 22, 2025; he now campaigns for remaining hostages.
Omer Tischler (עומר טישלר)
Omer Tischler (עומר טישלר), born 1975 in Karmiel, is an Israeli Air Force major general who became the 20th IAF commander on May 5, 2026, after serving as IAF chief of staff and deputy commander during the Gaza and Iran wars.
Ömer Yılmaz
Ömer Yılmaz, also known as Omer H. Yilmaz, is a Turkish-American physician-scientist and gastrointestinal pathologist at MIT who studies how fasting and diet shape intestinal stem cells and cancer.
Omeros
Omeros is a book-length narrative poem by the Saint Lucian poet Derek Walcott, published in 1990, that reworks Homeric epic themes in a Caribbean setting.
Omertà
Omertà, also called the law of silence, is the code of silence of the southern Italian mafia, forbidding any cooperation with state authorities and punishing breach by death.
Ometepe
Ometepe (Isla de Ometepe), Nicaragua's 276 km² volcanic island in Lake Cocibolca, formed by active Concepción (1,610 m) and dormant Maderas (1,394 m), a UNESCO biosphere reserve since 2010.
Omethoate
Omethoate (dimethoxon, Folimat, CAS 1113-02-6) is the oxygen-analogue oxon metabolite of the insecticide dimethoate, a direct acetylcholinesterase inhibitor far more potent than dimethoate, rat oral LD50 about 25 mg/kg, no longer produced or registered in the US and Canada.
Ōmetsuke
The Ōmetsuke (大目付) was an inspectorate of the Edo shogunate, established in 1632 under shogun Tokugawa Iemitsu to supervise the administration and monitor the daimyo, later becoming an honorary post.
OmeTV
OmeTV is a random video chat platform launched in 2015 that pairs strangers one-on-one for live webcam and text chat, with over 100 million app downloads.
Omexom
Omexom is the energy infrastructure brand of VINCI Energies, part of the French group VINCI, launched in 2000 and covering power generation, transmission, and solar.
Omfiloctocog alfa
Omfiloctocog alfa (SCT800, Anjiayin) is a B-domain-deleted recombinant factor VIII by Sinocelltech, the first domestic rFVIII approved in China (2021) for hemophilia A prophylaxis; also marketed as Hemofe in Indonesia.
OMG – Oh My God!
OMG – Oh My God! is a 2012 Hindi satirical comedy directed by Umesh Shukla, starring Paresh Rawal and Akshay Kumar, adapted from the Gujarati play Kanji Virrudh Kanji, about an atheist who sues God after an earthquake; a Superhit that faced censor and protest controversies.
OMG 2
OMG 2 (ओएमजी २) is a 2023 Hindi satirical comedy-drama, sequel to OMG – Oh My God, directed by Amit Rai, starring Akshay Kumar, Pankaj Tripathi, and Yami Gautam; a father's court fight for school sex education, released with an A certificate and 27 CBFC modifications.
Omi (singer)
OMI (Omar Samuel Pasley), Jamaican singer born 1986 in Clarendon, known for "Cheerleader," whose Felix Jaehn remix topped the Billboard Hot 100 for six weeks and the UK chart; debut album Me 4 U (2015).
Ōmi Code
The Ōmi Code (近江令, Ōmi-ryō) is a debated administrative code attributed to Emperor Tenji, dated 668 or 671, and the first of Japan's ritsuryō codes.