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DXTeen
DXTEEN (ディーエックスティーン) is a six-member Japanese boy group under LAPONE Entertainment (Yoshimoto Kogyo and CJ ENM joint venture), formed from LAPONE BOYS trainees, debuting May 10, 2023 with "Brand New Day"; fandom name NICO.
DXVK
DXVK is a Vulkan-based translation layer that lets Direct3D 8, 9, 10, and 11 games run on Linux through Wine, started by Philip Rebohle in 2017.
DY Patil Stadium
DY Patil Stadium, Nerul, Navi Mumbai (also Dr DY Patil Sports Academy): cricket and football venue opened 4 March 2008, capacity 45,300-55,000, hosted the first IPL and ISL finals and India's 2025 Women's Cricket World Cup final win.
Dyad (sociology)
Dyad (sociology): the smallest social group, two people, from Georg Simmel's formal sociology (Zweierverbindung, Soziologie 1908). No majority possible, destroyed by one member's withdrawal; contrasted with the triad.
Dyadic analysis
Dyadic analysis is a set of statistical methods for data from pairs of people, such as couples or friends, whose outcomes are interdependent, most commonly modeled with the actor–partner interdependence model.
Dyadics
Dyadics, also called dyadic tensors or dyadic products, are second-order tensors built as sums of dyads, introduced by Josiah Willard Gibbs in the early 1880s.
Dyah Wawa
Dyah Wawa was the last attested king of the central Javanese kingdom of Mataram, reigning around 928 CE; his reign ended when his chief minister Mpu Sindok moved the kingdom to East Java.
Dyamenyuo Corona
Dyamenyuo Corona is a 200 km-wide corona on Venus at 57.5 S, 42.5 E, in quadrangle V56, named in 1997 for an Enets (Samoyed) Siberian women's and childbirth deity.
Dyan Cannon
Dyan Cannon (born Samille Diane Friesen, 1937) is an American actress and filmmaker, ex-wife of Cary Grant, with Oscar nominations for Bob & Carol & Ted & Alice, the short Number One, and Heaven Can Wait.
Dyan-Mu Dorsa
Dyan-Mu Dorsa (Dyan Mu Dorsa), a 687 km dorsum ridge system on Venus at 78.20°N, 31.90°E, IAU-named in 1985 for the Chinese lightning goddess, in quad v01.
Dyango
Dyango is the stage name of José Gómez Romero, a Spanish singer of romantic ballads born in Barcelona in 1940, with more than 50 million records sold.
Dyann F. Wirth
Dyann F. Wirth is an American malariologist and molecular parasitologist, the Richard Pearson Strong Professor at Harvard, known for her work on malaria parasite genetics and drug resistance.
Dyanne D. Affonso
Dyanne D. Affonso is an American nurse-scientist and clinical psychologist whose research made postpartum depression an NIH women's health priority; she was named a Living Legend in 2025.
Dyatlov Pass incident
Dyatlov Pass incident: February 1959 deaths of nine Soviet hikers led by Igor Dyatlov on Kholat Saykhl, northern Urals; tent cut from inside; 2021 Gaume-Puzrin study explains deaths via delayed wind-loaded slab avalanche.
Dybbuk
Dybbuk (dybbukim): in Jewish folklore and Kabbalah, the clinging soul of a dead person that possesses a living host; rooted in 16th-century Safed Lurianic Kabbalah (gilgul, ibbur), treated by rabbinic exorcism, and made famous by An-ski's 1920 Yiddish play The Dybbuk.
Dybbuk (film)
Dybbuk (2021) is a Hindi horror film by Jay K, a remake of his Malayalam Ezra, starring Emraan Hashmi and Nikita Dutta; released 29 October 2021 on Prime Video, about a dybbuk box in Mauritius. Distinct from the 1937 Yiddish film The Dybbuk.
Dybbuk box
Dybbuk box, or Dibbuk box: a wine cabinet Kevin Mannis listed on eBay in 2003 with a fictional haunted backstory about a trapped dybbuk spirit; a 1950s Karoff minibar whose legend he later admitted inventing.
Dyck path
A Dyck path is a lattice path of up and down steps that starts and ends at level 0 and never goes below, counted by Catalan numbers.
Dyckia
Dyckia Schult. & Schult.f. is a genus of about 192 accepted xeromorphic bromeliad species native from Brazil to northern Argentina, with succulent spiny leaves, CAM photosynthesis, and yellow to orange flowers; also called dyckia or sawblade (D. brevifolia).
Dyclonine
Dyclonine, marketed as Dyclone and DycloPro, is a ketone-class topical local anesthetic used to numb the mouth, throat, and airway, sold over the counter in Sucrets lozenges.
DYDJI trial
DYDJI trial (NCT01180452), a GETAID prospective French multicentre cohort study of endoscopic chromoendoscopy screening for small bowel dysplasia and adenocarcinoma in 101 high-risk jejuno-ileal Crohn's disease patients; 4% prevalence, 33% sensitivity, screening not recommended.
Dydoe
Dydoe: a male genital piercing through the corona (rim) of the glans penis, usually done in pairs. Name coined by Doug Malloy from "doodad"; anatomy-dependent, prone to migration and rejection, with disputed healing times (6-8 weeks to 2-4 months).
Dydrogesterone
Dydrogesterone (Duphaston, Femoston) is a synthetic retroprogesterone progestogen developed by Philips-Duphar in 1959, used with estradiol in menopausal hormone therapy and for IVF luteal phase support; oral doses 10–20 times lower than progesterone, no androgenic or glucocorticoid activity.
Dye
A dye is a soluble colorant absorbed into materials like textile fibers, leather, or paper, distinguished from insoluble surface pigments; about 800,000 tonnes are produced yearly.
Dye laser
A dye laser is a laser whose gain medium is a fluorescent organic dye in liquid solvent, the first broadly tunable laser, invented in 1966 at IBM.
Dye penetrant inspection
Dye penetrant inspection, also called liquid penetrant testing, is a nondestructive testing method that reveals surface defects in nonporous metals, ceramics, and plastics by drawing dye into the flaw.
Dye tracing
Dye tracing is a hydrogeology technique that injects fluorescent dye, typically uranine, into water and measures it downstream to reveal underground flow paths and velocities.
Dye-sensitized photoelectrochemical cells
Dye-sensitized photoelectrochemical cells (DSPECs) use a molecular dye on a semiconductor electrode to absorb visible light and drive water splitting, producing hydrogen fuel, and can also convert CO2.
Dye-sensitized solar cell
A dye-sensitized solar cell, also called a Grätzel cell, is a photovoltaic device where dye on titanium dioxide absorbs light; invented at EPFL in 1991, it excels indoors.
Dyeing
Dyeing is the process of applying colorants to textile fibers, yarns, or fabrics so the color survives washing and wear; it accounts for 70 to 80% of textile industry wastewater.