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Dror Yikra
Dror Yikra (Hebrew: דרור יקרא) is a Sabbath table hymn written in the tenth century by the Hebrew poet and grammarian Dunash ben Labrat, still widely sung.
Drosera
Drosera, the sundews, is a genus of 260 accepted carnivorous plant species with sticky flypaper traps, cosmopolitan in distribution, sister to Dionaea and Aldrovanda, richest in Australia and Brazil, and long used medicinally.
Drosera anglica
Drosera anglica (English sundew, mikinalo) is a circumboreal carnivorous sundew, an allopolyploid hybrid of D. rotundifolia and D. linearis with 2n = 40, native also to Kauaʻi's montane wetlands.
Drosera capensis
Drosera capensis, the Cape sundew, is a perennial carnivorous plant native to South Africa's Cape Provinces. It traps insects with sticky mucilage tentacles, curls its leaf into an outer stomach, digests prey with enzymes, and self-pollinates readily.
Drosera cultivars and hybrids
Drosera cultivars and hybrids are named sundew plants: cultivars are registered with the International Carnivorous Plant Society, and hybrids like Drosera × obovata carry botanical names.
Drosera rotundifolia
Drosera rotundifolia, the round-leaved or common sundew, is a carnivorous Droseraceae perennial of Northern Hemisphere bogs, with sticky round flypaper leaves, 2n=20, studied by Darwin, parent of D. anglica.
Droseraceae
Droseraceae, the sundew family, is a family of carnivorous flowering plants comprising three genera: the sundews (Drosera), the Venus flytrap (Dionaea), and the aquatic waterwheel plant (Aldrovanda).
Drosha
Drosha (DROSHA, RNASEN) is the nuclear RNase III enzyme of the Microprocessor complex with DGCR8 that cleaves pri-miRNA stem loops about 11 bp from the basal junction, releasing ~70-nt pre-miRNAs; mutations link it to Wilms tumor, MDS, and neurodevelopmental syndromes.
Drosophila
Drosophila (vinegar fly genus, over 1600 species, type species D. funebris) is a drosophilid fly genus; D. melanogaster is a premier genetics model with conserved human disease genes, while D. suzukii is a fruit pest.
Drosophila embryogenesis
Drosophila embryogenesis, fruit fly embryo development: 13 syncytial nuclear cycles, ~6000 nuclei, cellularization, maternal/gap/pair-rule/segment polarity gene hierarchy, Heidelberg screen, 1995 Nobel Prize.
Drosophila melanogaster
Drosophila melanogaster, the fruit fly, the leading genetic model organism: 143.7 Mb genome, 13,986 coding genes, 9–10-day life cycle, four Nobel Prizes, and the 2024 complete 139,255-neuron brain connectome.
Drosophila suzukii
Drosophila suzukii, the spotted-wing drosophila or cherry drosophila (Matsumura, 1931), is an Asian vinegar fly whose females oviposit in ripening soft fruit; invasive in Hawaii (1980), mainland North America and Europe (2008), causing about $500 million yearly US crop damage.
Drosophilidae
Drosophilidae (Rondani, 1856), the vinegar, pomace, or fruit fly family of Diptera; over 4,400 species in subfamilies Steganinae and Drosophilinae; includes the model organism Drosophila melanogaster and the pest D. suzukii.
Drospirenone
Drospirenone (DRSP), a spironolactone-analogue progestin with anti-mineralocorticoid and antiandrogenic activity, used in Yasmin, Yaz, Slynd, and estetrol combination pills; VTE risk versus levonorgestrel estimated at 1.0–3.3.
Drostanolone propionate
Drostanolone propionate, also called dromostanolone propionate and sold as Masteron, Drolban, and Masteril, is an injectable anabolic-androgenic steroid once used to palliate recurrent breast cancer.
Droste effect
Droste effect: recursive imagery in which a picture contains a smaller copy of itself, named for Droste cocoa tins (c. 1900) showing a nurse holding the same tin; analyzed mathematically via Escher's Print Gallery.
Drotaverine
Drotaverine (No-Spa, Drotin) is a Hungarian benzylisoquinoline antispasmodic, a PDE4 inhibitor related to papaverine, used for gastrointestinal, biliary, and urinary smooth muscle spasms; half-life about 9 hours, not FDA or EMA approved.
Drotrecogin alfa (activated)
Drotrecogin alfa (activated), brand name Xigris, recombinant human activated protein C (rhAPC, LY-203638), an Eli Lilly antithrombotic for severe sepsis; FDA-approved 2001, EU 2002, withdrawn worldwide in 2011 after PROWESS-SHOCK showed no mortality benefit.
Dróttkvætt
Dróttkvætt (Old Norse "court metre") is the principal meter of Old Norse skaldic poetry: an eight-line stanza bound by alliteration, internal rhyme, and strict word order.
Drought
A drought is a prolonged absence or marked deficiency of precipitation, affecting an estimated 55 million people each year and causing about USD 307 billion in annual losses.
Drought in Australia
Drought in Australia, also known as the Big Dry, refers to prolonged periods of abnormally low rainfall affecting agriculture and water supplies across the continent.
Drought Resistance
Drought resistance is the integrated capability of plants to escape, avoid, or tolerate water deficit, via four mechanisms (escape, avoidance, tolerance, recovery); key crops include sorghum, millet, pigeon pea, and cowpea.
Droupadi Murmu (द्रौपदी मुर्मू)
Droupadi Murmu (द्रौपदी मुर्मू), born 1958 in Mayurbhanj, Odisha, is India's 15th President since 25 July 2022, the first tribal holder of the office; formerly Odisha minister and Governor of Jharkhand.
Drow
Drow are D&D's dark elves: dark-skinned, white-haired Underdark dwellers created by Gary Gygax, first appearing in G3 Hall of the Fire Giant King (1977), ruled by the spider goddess Lolth, and famous through R.A. Salvatore's Drizzt Do'Urden novels.
Drowning
Drowning: respiratory impairment from submersion/immersion in liquid (WHO 2002 definition). About 300,000 deaths yearly, 92% in low- and middle-income countries; hypoxia is the key mechanism; CPR requires rescue breaths.
Drowning Girl
Drowning Girl (Help, Drowning Girl) is a 1963 Roy Lichtenstein Pop art oil and acrylic painting at MoMA, cropped from Tony Abruzzo's Secret Hearts #83 romance comic, with the speech bubble 'I don't care! I'd rather sink than call Brad for help!'
Drowning Pool
Drowning Pool is a Dallas, Texas nu metal band formed in 1996, famous for the 2001 platinum album Sinner and single Bodies. After vocalist Dave Williams died in 2002, singers Jason Jones, Ryan McCombs, and Jasen Moreno fronted the band.
Drowsy driving
Drowsy driving is operating a vehicle while impaired by sleep loss, fatigue, or sleep disorders, which slows reaction time and can end in falling asleep at the wheel.
Droylsden
Droylsden FC, also called The Bloods, an English non-league football club founded 1892 in Droylsden, Greater Manchester, playing at the Butchers Arms; Conference North champions 2006-07, now in the North West Counties League.
Droz (wrestler)
Droz (Darren Drozdov, 1969-2023), American pro wrestler and former NFL defensive lineman for the Denver Broncos; WWF's 'Puke,' Legion of Doom partner; quadriplegic after a 1999 D-Lo Brown powerbomb.