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All articles starting with B

27,400 articles

Brachyspira hyodysenteriae

Brachyspira hyodysenteriae (formerly Treponema, Serpula, Serpulina hyodysenteriae) is an oxygen-tolerant anaerobic intestinal spirochete, the primary cause of swine dysentery in pigs, with tiamulin and tylosin resistance emerging.

Brachystegia

Brachystegia (msasa, miombo) is a genus of about 29 African legume trees dominating miombo woodlands of central and southern Africa, valued for timber, bark fibre, and food, with Pliocene diversification and hybridization complicating its taxonomy.

Brachytelephalangic chondrodysplasia punctata

Brachytelephalangic chondrodysplasia punctata is a rare X-linked recessive bone dysplasia caused by arylsulfatase E deficiency, causing underdeveloped fingertip bones, nasal hypoplasia, stippled epiphyses, and usually a good prognosis.

Brachyteles

Brachyteles (muriquis, woolly spider monkeys) is a genus of two Critically Endangered ateline monkeys endemic to Brazil's Atlantic Forest, the largest New World primates, feeding heavily on leaves and split into southern (B. arachnoides) and northern (B. hypoxanthus) species.

Brachytherapy

Brachytherapy, also called sealed source radiotherapy or internal radiotherapy, is a type of radiation therapy in which a radioactive source is placed inside the body.

Bracing (aeronautics)

Bracing in aeronautics is the use of external struts and tensioned wires to help a wing carry aerodynamic and landing loads, as on the Cessna 172.

Bracken

Bracken (Pteridium aquilinum), also called brake fern, is a toxic perennial fern found on every continent except Antarctica, with fronds up to 3 m, rhizomes living 70 years, and control by asulam or repeated cutting.

Bracket

Bracket: paired grouping symbols, parentheses ( ), square brackets [ ], braces { }, and angle brackets ⟨ ⟩, used in writing, mathematics, and programming; first recorded in Colluccio Salutati's 1399 manuscript De nobilitate legum.

Bracket (group)

Bracket is a Nigerian music duo of Smash and Vast from Nsukka, Enugu State, whose "Afro high-life" sound broke through with "Yori Yori" in 2009.

Bracket (mathematics)

In mathematics, a bracket is a pair of symbols like ( ), [ ], or { } used to group expressions or carry specialized meanings.

Bracket (tournament)

Bracket (tournament): the structure or diagram arranging entrants in a tournament, spanning single elimination (N-1 matches), double elimination (~2N-1), round robin (N(N-1)/2), and Swiss formats, chosen by time, field size, and fairness.

Bracket Capital

Bracket Capital is a private investment firm in West Hollywood, California, founded in 2017 by Jihan Bowes-Little and Yalda Aoukar, investing in later-stage technology companies.

Bracket clock

A bracket clock is a small, spring-driven, wood-cased pendulum clock meant to stand on a wall bracket or sit on a table, common in the 17th and 18th centuries.

Bracket SVI Late Stage, LP

Bracket SVI Late Stage, LP is a private equity fund managed by Bracket Ventures Management, LLC, through which Bracket Capital invests in later-stage technology companies.

Bracketing F1 score

Bracketing F1 score, also called labeled F1 or LF1, is the standard accuracy measure for constituency parsing, first proposed in the 1991 PARSEVAL evaluation scheme.

Brackets (text editor)

Brackets, also known as Adobe Brackets, is a free, open-source code editor for web development written in JavaScript, HTML, and CSS, known for its Live Preview and inline editors.

Brackish marsh

Brackish marsh: tidal wetland in estuaries where seawater mixes with freshwater, with water salinity 0.5-35 ppt and soil salinity 0.5-18 ppt, between salt marsh and freshwater tidal marsh in vegetation and position.

Brackish water

Brackish water, also called brack water, is water whose salt content falls between that of freshwater and seawater, occurring naturally in estuaries and in some groundwater.

Brackley Town F.C.

Brackley Town F.C., English non-league football club founded 1890 in Brackley, Northamptonshire; FA Trophy winners 2018, National League North champions 2025, relegated from the National League in 2026.

Bracknell

Bracknell is a town in Berkshire, England, about 30 kilometers south west of London, designated a New Town in 1949 and rebuilt from a small market town into a major Thames Valley center.

Bracław Voivodeship

Bracław Voivodeship (Polish: województwo bracławskie, Ukrainian: Брацлавське воєводство) was an administrative unit of Right-Bank Ukraine, created in 1566 and part of the Polish Crown from 1569 to 1793, with its seat at Bracław.

Bracon (wasp)

Bracon is a large genus of braconine parasitoid wasps (family Braconidae) with over 1,000 described species; species such as B. brevicornis, B. hebetor, and B. mellitor are idiobiont ectoparasitoids used in biological control of lepidopteran and beetle pests.

Braconidae

Braconidae is a family of parasitoid wasps whose larvae develop on or in other insects; with more than 21,220 described species, it ranks among the most species-rich animal families.

Bracquemont

Bracquemont (Cité de Limes, Camp de César): a 50-hectare Gallic oppidum of the Calètes on a 70 m cliff near Dieppe, Seine-Maritime, an éperon barré with a fanum, now eroded by the sea; also a former commune merged into Petit-Caux in 2016.

Brad

Brad, a town in Hunedoara County, Romania, in the Metaliferi Mountains, is a Roman-era gold mine (Pleiades, Barrington Atlas 21 E3) with the Treptele Romane gallery at Ruda-Brad and the Gold Museum.

Brad (doll)

Brad is a Mattel fashion doll produced from 1970 to 1972 as Christie's boyfriend, and he is the first African-American male doll produced in the Barbie line.

Brad Allan

Brad Allan (Bradley James Allan, 1973-2021), Australian stuntman and action director, first non-Asian member of the Jackie Chan Stunt Team; stunt coordinator for Shang-Chi, Kingsman, and Pacific Rim.

Brad Anderson (director)

Brad Anderson (born 1964, Madison, Connecticut) is the American director of Session 9, The Machinist, and The Call, distinct from Wes Anderson and Paul Thomas Anderson; he also directs prestige TV including The Wire and Fringe.

Brad Armstrong (wrestler)

Brad Armstrong (Robert Bradley James, 1962–2012), American professional wrestler, son of Bullet Bob Armstrong and brother of Road Dogg; WCW Light Heavyweight and Six-Man Tag Team Champion known for masked gimmicks like Badstreet and Arachnaman.

Brad Ausmus

Brad Ausmus, MLB catcher (1993-2010) and Tigers/Angels manager; three-time Gold Glove winner, all-time defensive leader; Dartmouth graduate; now Yankees bench coach and Team Israel 2026 WBC manager.