All articles starting with D
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Dehydrogenative coupling
Dehydrogenative coupling, also known as cross-dehydrogenative coupling, is a bond-forming chemical reaction that joins C–H bonds directly without prefunctionalized partners, pioneered by Zhiping Li and Chao-Jun Li in 2004.
Dehydrohalogenation
Dehydrohalogenation is an elimination reaction in which a base removes hydrogen and a halogen from adjacent carbons, forming an alkene or, from dihalides, an alkyne.
Dei Sepolcri
Dei Sepolcri (Of the Sepulchres) is a 1807 poem of 295 unrhymed hendecasyllables by Ugo Foscolo, dedicated to Ippolito Pindemonte and arguing that tombs matter for the living.
Dei verbum
Dei verbum, the Dogmatic Constitution on Divine Revelation, is a document promulgated by Pope Paul VI on 18 November 1965, teaching that Scripture and Tradition form one sacred deposit.
Deichbrand Festival
Deichbrand Festival, also known as Deichbrand, is a rock, pop, and electronic music festival held annually since 2005 on the German North Sea coast near Cuxhaven, Lower Saxony.
Deichmann
Deichmann, formally DEICHMANN SE, is a German family-owned footwear retailer headquartered in Essen. Founded in 1913, it has grown into Europe's largest shoe retailer with around 4,700 stores.
Deichmann family
The Deichmann family of Essen, Germany, owns Deichmann SE, the shoe retailer founded in 1913, now one of Europe's largest with over 4,700 stores and 100% family ownership.
Deicide (band)
Deicide is an American death metal band formed in Tampa, Florida in 1987 as Amon, renamed Deicide in 1989, and ranked second in death metal sales of the SoundScan era.
Deicing boot
A deicing boot is an inflatable rubber membrane bonded to aircraft wing leading edges that cracks off ice when inflated, invented by William C. Geer in 1930.
Deidre Hall
Deidre Hall (born 1947, Milwaukee) is an American actress who created Dr. Marlena Evans on Days of Our Lives in 1976, starred in Our House and Electra Woman and Dyna Girl, and received a 2016 Hollywood Walk of Fame star.
Deidre Henderson
Deidre M. Henderson is an American Republican politician serving as the ninth Lieutenant Governor of Utah since 2021, after eight years in the Utah State Senate representing the 7th District.
Deimatic behaviour
Deimatic behaviour, also called startle display, is an antipredator defence where prey make sudden conspicuous displays that trigger unlearned avoidance in predators; distinct from aposematism, seen in swallowtails, eyespots, and toad unken reflex.
Deimmunization
Deimmunization is a protein engineering method that mutates therapeutic proteins and antibodies to remove predicted T cell epitopes, reducing anti-drug antibody responses while preserving the molecule's function.
Deimos (moon)
Deimos, also known as Mars II, is the smaller and outer moon of Mars, discovered by Asaph Hall in 1877 and named for the Greek personification of flight.
Deimos (Δεῖμος) (deity)
Deimos (Δεῖμος), Greek daimon of dread and terror, brother of Phobos, son of Ares (with Aphrodite in Hesiod), charioteer of his father in battle; Roman Metus, namesake of Mars's outer moon.
Deindustrialization
Deindustrialization, also known as industrial decline, is the long-term decline of manufacturing's share of employment and GDP, driven mainly by faster productivity growth in manufacturing.
Deinfibulation
Deinfibulation, also called defibulation, is a minor surgical procedure cutting open scar tissue sealing the vaginal opening in Type III FGM/C, restoring urination, menstruation, intercourse, and childbirth.
Deinking
Deinking is the process of removing printing ink and contaminants from recycled paper fibers, mainly by washing and flotation, so the recovered pulp can make new paper.
Deinocheirus
Deinocheirus mirificus, a giant ornithomimosaur dinosaur from the Late Cretaceous Nemegt Formation of Mongolia, known for 2.4 m arms found in 1965; complete 2014 skeletons revealed an 11 m, 6.4-ton hump-backed, duck-billed omnivore.
Deinococcus
Deinococcus, a genus of extremely radioresistant Gram-positive-staining bacteria in the phylum Deinococcus-Thermus; type species D. radiodurans, isolated 1956 from irradiated canned meat, survives ~10 kGy via protein protection and DNA repair.
Deinocroton
Deinocroton is an extinct Cretaceous tick genus from Burmese amber (~99 Ma), type species D. draculi, likely parasitizing feathered dinosaurs; formerly family Deinocrotonidae, now placed in Nuttalliellidae.
Deinonychus
Deinonychus antirrhopus, the 'terrible claw' dromaeosaurid theropod from Early Cretaceous North America (115–108 Ma), 3.4 m long; its 1969 description by Ostrom sparked the dinosaur renaissance and its sickle claw is now seen as a grasping, not slashing, weapon.
Deinopidae
Deinopidae, the net-casting or ogre-faced spiders, is a spider family whose members throw a small cribellate silk net over nocturnal prey; three genera, Asianopis, Deinopis, and Menneus, with about 71 species, and greatly enlarged posterior median eyes in Deinopis.
Deinosuchus
Deinosuchus, the 'terror crocodile', a giant Late Cretaceous North American crocodylian (species hatcheri, riograndensis, schwimmeri) reaching about 11 m, apex predator that ate dinosaurs and turtles, reclassified in 2025 as a stem crocodylian.
Deinotherium
Deinotherium, extinct Miocene-Pleistocene proboscidean (Kaup, 1829) related to elephants, with downward-curving lower tusks, no upper tusks, over 4 m shoulder height, browsing diet across Africa and Eurasia.
Deinstitutionalization
Deinstitutionalization is the process of shifting mental health care from long-stay psychiatric institutions to community-based services, so people can return to and live in their communities.
Deioces
Deioces (Greek Deiokes) is, according to Herodotus, the first king of the Medes, unifier of the Median tribes, and founder of the capital Ecbatana; his existence is disputed.
Deion Branch
Deion Branch (Anthony Deion Branch Jr., born 1979) is a former NFL wide receiver, Louisville star, and Super Bowl XXXIX MVP with 11 catches for 133 yards; two-time champion with the Patriots, later traded to Seattle and reacquired in 2010.
Deion Burks
Deion Burks (born 2003) is an NFL wide receiver for the Indianapolis Colts, drafted 254th overall in 2026 after college careers at Purdue and Oklahoma; 4.30-second 40-yard dash, 151 career college catches.
Deion Jones
Deion Jones (born 1995) is an NFL linebacker from New Orleans, an LSU product drafted 52nd overall by the Falcons in 2016, a 2017 Pro Bowler, now with the San Francisco 49ers after stints with Cleveland, Carolina, Buffalo, Tampa Bay, and New Orleans.