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Barrett Brown
Barrett Lancaster Brown, American journalist and Project PM founder, prosecuted over a link to hacked Stratfor data; pleaded guilty 2014, sentenced to 63 months and $890,250 restitution, released 2016, later wrote My Glorious Defeats.
Barrett Doss
Barrett Doss, American actress and singer, played Vic Hughes on ABC's Station 19 (2018–2024) and Rita Hanson in Broadway's Groundhog Day (2017, Theatre World Award); films Marshall and The Noel Diary; now Emily Henderson in Netflix's Little House on the Prairie.
Barrett Foa
Barrett Foa, American actor, singer, and dancer; Eric Beale on NCIS: Los Angeles; Broadway roles include Princeton/Rod in Avenue Q, Mamma Mia!, and Leaf Coneybear in The 25th Annual Putnam County Spelling Bee; not the Barrett civil engineering or robotics firms.
Barrett Hand
The Barrett Hand, or BarrettHand, is a three-fingered programmable robotic grasper made by Barrett Technology, first launched in 1993 with NASA and known as one of the first effective commercial robot grippers.
Barrett J. Rollins
Barrett J. Rollins is an American oncologist at Dana-Farber Cancer Institute and Harvard Medical School known for chemokine research and discovering BRAF mutations in Langerhans cell histiocytosis.
Barrett M82
The Barrett M82, nicknamed the Light Fifty, is a semi-automatic anti-materiel rifle chambered in .50 BMG, designed by Ronnie Barrett in 1982 and used by militaries in about 70 countries.
Barrett M95
The Barrett M95, or Barrett Model 95, is a bolt-action bullpup anti-materiel rifle in .50 BMG, introduced by Barrett Firearms in 1995 as an improved Model 90.
Barrett MRAD
The Barrett MRAD, also known as the Mk 22 Advanced Sniper Rifle, is a bolt-action precision rifle by Barrett Firearms of Tennessee that converts between calibers by swapping the barrel, bolt, and magazine.
Barrett Technology
Barrett Technology is an American robotics company based in Newton, Massachusetts. Founded in 1988 as an MIT spinout, it makes the WAM arm and the BarrettHand gripper.
Barrett ulcer
A Barrett ulcer is a chronic peptic ulcer that develops within the metaplastic columnar epithelium lining the esophagus in Barrett's esophagus, a complication of chronic reflux disease.
Barrett WAM
The Barrett WAM, or Whole Arm Manipulator, is a cable-driven, backdrivable robotic arm developed at MIT in 1987 and made by Barrett Technology for safe force control around people.
Barrett Wilbert Weed
Barrett Wilbert Weed (born 1988, Boston) is an American musical theater actress who originated Veronica Sawyer in Heathers: The Musical and Janis Sarkisian in Mean Girls on Broadway, and voices Octavia in Helluva Boss.
Barrett XM109
The Barrett XM109, originally known as the Objective Sniper Weapon, is a prototype semi-automatic anti-materiel rifle developed by Barrett Firearms, chambered for the 25x59mm grenade cartridge and never fielded by the U.S. military.
Barrett's esophagus
Barrett's esophagus, also called columnar-lined esophagus, is metaplastic columnar epithelium replacing distal esophageal squamous lining, caused by chronic GERD and the only known precursor to esophageal adenocarcinoma, managed by endoscopic surveillance and ablation.
Barricades in Riga
The Barricades in Riga, known in Latvian as Barikāžu laiks, was a mass non-violent resistance in January 1991, when people blockaded government buildings in support of Latvia's restored independence.
Barrick Mining
Barrick Mining, formerly Barrick Gold, is a Canadian mining company and one of the world's largest gold producers, with mines across the Americas, Africa, and Asia.
Barrie
Barrie is a city on Kempenfelt Bay, Lake Simcoe, Ontario, named for Sir Robert Barrie; 147,829 residents in 2021 (CMA 212,856), incorporated 1854, growing toward a 298,000-person 2051 forecast with a 2025 annexation of 1,673 hectares.
Barrie Chase
Barrie Chase (born October 20, 1933) is an American dancer and actress, daughter of screenwriter Borden Chase, best known as Fred Astaire's final TV dance partner (1958–1968) and for Cape Fear, It's a Mad Mad Mad Mad World, and The Flight of the Phoenix.
Barrie Colts
Barrie Colts, Ontario Hockey League junior team in Barrie, Ontario, founded 1995; play at Sadlon Arena; won the 2000 J. Ross Robertson Cup and reached the 2000 Memorial Cup final; owned by John Careri since 2026.
Barrie Drewitt-Barlow
Barrie Drewitt-Barlow, British businessman known as one of Britain's first gay fathers through US surrogacy (twins Aspen and Saffron, 1999) and co-owner of Maldon & Tiptree FC; charged with husband Scott in 2026 with rape, sexual assault, and trafficking offences, which they deny.
Barrie Gilbert
Barrie Gilbert (1937–2020) was an English-born analog integrated-circuit engineer who worked at Tektronix and Analog Devices and created the Gilbert cell mixer and the translinear principle.
Barriemore Barlow
Barriemore Barlow is an English drummer born 1949 in Birmingham, Jethro Tull's drummer 1971-1980 on Thick as a Brick through Stormwatch, later working with Robert Plant, Jimmy Page, and Tandoori Cassette.
Barrier analysis
Barrier analysis is a safety and risk analysis method that identifies the barriers whose absence or failure allowed a hazard or accident to occur, tracing why they failed to prevent recurrence.
Barrier beach
A barrier beach is a long, narrow ridge of sand or gravel built by wave action between the ocean and a sheltered lagoon, bay, or marsh.
Barrier certificates
A barrier certificate is a scalar function whose level sets prove a dynamical system's trajectories never enter an unsafe region, extended to stochastic systems and to control barrier functions.
Barrier Contraception
Barrier contraception: condoms, diaphragm, cervical cap, sponge, and spermicides that block or kill sperm. Typical-use failure 13–22%; condoms add STI protection; caps and diaphragms are fitted, spermicide-based devices.
Barrier cream
Barrier cream (barrier preparation): a topical cream, paste, ointment, or spray applied to skin to protect against irritants and water loss, used in occupational dermatitis, diaper rash, and stoma care; evidence of prevention is low quality and it is not a glove substitute.
Barrier function
In potential theory, a barrier function is an auxiliary superharmonic function, positive inside a domain and vanishing at one boundary point; a barrier exists there exactly when the point is regular.
Barrier island
Barrier island: sandy coastal landform parallel to the mainland, separated by bays and lagoons; also called barrier chains like the Outer Banks. Forms by wave and longshore sediment deposition, protects coasts from storm surge, and erodes under sea-level rise and human activity.
Barrier layer (oceanography)
A barrier layer in oceanography is a nearly isothermal water layer between the mixed layer and the thermocline, kept in place by a salinity gradient and limiting surface heat exchange.