All articles starting with O
9,097 articles
Onuralp Bitim
Onuralp Bitim (born 1999, Kadıköy, Turkey) is a Turkish forward for Fenerbahçe and Turkey's national team; former Chicago Bulls player, 2022-23 All-EuroCup Second Team with Bursaspor.
ONVIF
ONVIF (Open Network Video Interface Forum) is a nonprofit industry forum founded in 2008 by Axis, Bosch, and Sony to standardize IP security product interfaces.
Onvo (乐道)
Onvo (乐道) is a family-oriented smart electric vehicle brand of the Chinese automaker NIO, launched in Shanghai in May 2024; its first model is the L60 SUV.
Onward (film)
Onward is a 2020 Pixar animated fantasy film directed by Dan Scanlon, about elf brothers Ian and Barley Lightfoot questing to resurrect their late father for one day; Pixar's first fantasy film, inspired by Scanlon's own fatherless childhood.
Onward Energy Holdings
Onward Energy Holdings is the holding company of Onward Energy, a private American power producer owning wind, solar, and natural gas plants across the United States.
Onwards and Sideways
Onwards and Sideways is a 2026 British comedy-drama, also known as But When We Dance, directed by John Madden and written by Paul Mayhew-Archer, who has Parkinson's. Rhys Ifans and Laura Linney play strangers diagnosed with Parkinson's the same morning; it premiered at TIFF 2026 and opened in UK cinemas 6 November 2026.
onXmaps, Inc.
onXmaps, Inc., doing business as onX, is an American outdoor navigation company in Missoula, Montana, founded by Eric Siegfried in 2009 to show land ownership on GPS apps.
Onya Nurve
Onya Nurve, stage name of Justin Woody, is an American drag performer from Cleveland, Ohio and the winner of RuPaul's Drag Race season 17 (2025), the first Ohioan to win, with four challenge wins and a Snatch Game victory as Eddie Murphy.
Onychectomy
Onychectomy, informally declawing or de-clawing, is the surgical amputation of a cat's third phalanges and attached claws, usually on the front paws, and is increasingly restricted by law.
Onychium
Onychium (claw ferns) is a genus of 12 accepted terrestrial fern species in Pteridaceae subfamily Pteridoideae, native from NE tropical Africa through tropical and subtropical Asia to N Australia, sister to Actiniopteris, with submarginal continuous sori protected by a reflexed false indusium.
Onychocytic matricoma
Onychocytic matricoma (acanthoma of the nail matrix) is a rare benign nail matrix tumor first described by Perrin in 2012, causing monodactylous longitudinal pachymelanonychia with nail plate thickening, purely epithelial histology, and mimicry of melanoma and onychocytic carcinoma.
Onychogalea fraenata
Onychogalea fraenata, the bridled nailtail wallaby, is an endangered macropod of inland eastern Australia, named for white bridle markings on its neck and thought extinct until rediscovered in 1973.
Onycholysis
Onycholysis, also called nail plate separation or detachment, is a common nail disorder in which the nail plate lifts off the nail bed, appearing white and opaque. Causes include trauma, psoriasis, fungal infection, thyroid disease, and drugs such as tetracyclines and taxanes.
Onychomatricoma
Onychomatricoma is a rare benign fibroepithelial tumor of the nail matrix, first described by Baran and Kint in 1992, causing yellow thickened overcurved nails with splinter hemorrhages, woodworm-like cavities, and coexisting onychomycosis; treated by surgical excision.
Onychomycosis
Onychomycosis (tinea unguium, nail fungus): fungal infection of the nail, mainly Trichophyton rubrum, causing 2–13% population prevalence. Diagnosed by KOH, culture, PCR, PAS; treated with terbinafine, itraconazole, or efinaconazole.
Onychomys
Onychomys (grasshopper mice), genus Baird 1857, three carnivorous rodent species of western North American deserts and prairies; eats scorpions, resists bark scorpion venom via Nav1.8, tribe Onychomyini reinstated 2023.
Onychophora
Onychophora (velvet worms, peripatus): terrestrial carnivorous invertebrate phylum with 13–43 pairs of unjointed lobopods, slime-gland prey capture, and a position within Panarthropoda close to arthropods.
Onyeka Okongwu
Onyeka Okongwu (born 2000) is an American NBA forward-center for the Atlanta Hawks, drafted sixth overall in 2020 from USC, now the Hawks' starting center averaging 15.4 points in 2025-26.
Onyekachi Ifudu
Onyekachi Ifudu, also published as O. Ifudu, is a nephrologist and board-certified internist in Brooklyn, New York, known for 1990s research linking dialysis intensity to anemia control.
Onyx
Onyx is a banded variety of chalcedony, a microcrystalline form of quartz, whose straight parallel bands distinguish it from agate; black-and-white material is the classic form.
Onyx (music)
Onyx is a large EDM nightclub on Royal City Avenue in Bangkok, Thailand, opened in 2014 and repeatedly ranked in DJ Mag's Top 100 Clubs.
Onyx Coffee Lab
Onyx Coffee Lab is an American specialty coffee company founded in Springdale, Arkansas, in 2012 by Jon and Andrea Allen, named the world's best coffee shop in 2026.
Onyx Equinox
Onyx Equinox is a cancelled Crunchyroll Original animated series created by Sofia Alexander, set in pre-colonial Mesoamerica, where the Aztec boy Izel must close five underworld gates in a bet between Quetzalcoatl and Tezcatlipoca. Twelve 24-minute episodes aired November-December 2020.
Onyx Storm
Onyx Storm is a 2025 fantasy novel by Rebecca Yarros, the third in her Empyrean series about dragon riders at a war college, and the year's top-selling US title.
Onyx the Fortuitous and the Talisman of Souls
Onyx the Fortuitous and the Talisman of Souls is a 2023 American comedy-horror film by Andrew Bowser, adapting his viral YouTube occultist character; Sundance 2023 premiere, $610,467 budget, starring Jeffrey Combs and Olivia Taylor Dudley.
Oo Antava Oo Oo Antava
"Oo Antava Oo Oo Antava" is a Telugu item song from the 2021 film Pushpa – The Rise, sung by Indravathi Chauhan and featuring Samantha Ruth Prabhu.
Oobi (TV series)
Oobi is an American preschool TV series of bare-hand puppets created by Josh Selig for Noggin, airing 2000-2005 in three seasons, with an Iranian adaptation, Oobi: Dasdasi, in 2012.
Ooblast
Ooblast (CL:0002239) is a Cell Ontology term for an early female germ cell stage, annotated in mouse at Theiler stage 21; it sits between oogonia and the primary oocyte within oogenesis.
Oocyte
Oocyte: a developing egg cell arrested in prophase I and metaphase II of meiosis before fertilization; basis of IVF and oocyte cryopreservation (vitrification), routine since ASRM's 2013 decision.
Oocyte cryopreservation
Oocyte cryopreservation, or egg freezing, is an assisted reproductive technology that freezes a woman's unfertilized eggs, used for fertility preservation before cancer therapy and elective age-related decline.