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Asphyxia
Asphyxia: oxygen deprivation with carbon dioxide retention, from drowning, strangulation, choking, positional restraint, or birth asphyxia; unconsciousness in 2–3 minutes, brain injury in 4–6, asystolic arrest.
Asphyxiation
Asphyxiation, also called asphyxia or suffocation, is oxygen deprivation from blocked breathing, neck compression, drowning, or vitiated atmospheres; forensic subtypes include strangulation, hanging, choking, and positional asphyxia.
Aspic
Aspic is a savory jelly of clarified meat, fish, or vegetable stock set with gelatin, used to glaze, mold, and garnish cold dishes; also called gelée, distinct from consommé by gel strength, with roots in medieval Le Viandier.
Aspide
The Aspide is an Italian medium-range semi-active radar-homing missile developed by Selenia from the American AIM-7E Sparrow, first launched in 1975 and widely exported before replacement by CAMM-ER.
Aspidistra
Aspidistra (cast-iron plant genus) is a genus of rhizomatous Asparagaceae herbs, subfamily Nolinoideae, native from the eastern Himalaya to Japan, with over 200 species and fungus-gnat pollination; A. elatior is the familiar houseplant.
Aspidoceras
Aspidoceras is an extinct Late Jurassic to Early Cretaceous ammonite genus in the family Aspidoceratidae, subfamily Aspidoceratinae, with large tuberculate shells, named species such as A. caletanum, and fossils across Europe, Japan, and the Americas.
Aspidoscelis
Aspidoscelis, the North American whiptail lizards, is a teiid lizard genus resurrected from Cnemidophorus in 2002, with about 51 species from the USA to Central America, several parthenogenetic and of hybrid origin.
Aspidosperma
Aspidosperma is a genus of trees in the dogbane family, Apocynaceae, native from Mexico to Argentina, with 42 of its 80 accepted species occurring in Brazil.
Aspiral (album)
Aspiral is the ninth studio album by Dutch symphonic metal band Epica, released April 11, 2025 on Nuclear Blast; 11 tracks, 1:01:12, titled after a 1965 Szukalski statue, recorded at Sandlane, produced by Joost van den Broek.
Aspiran
Aspiran, a village of about 1,680 inhabitants in the Hérault, Occitanie, France, is a commune with the listed Église Saint-Julien (PA00103359) and major Roman wine archaeology: the Saint-Bézard villa, earliest known wine estate in Gaul, and the Estagnola amphora workshop.
Aspirants
Aspirants (आस्पिरेंट्स) is a 2021 Hindi TVF web series about three friends preparing for India's UPSC civil services exam in Delhi; five episodes on YouTube, later seasons on Prime Video, IMDb 9.1/10.
Aspirated consonant
Aspirated consonant: a stop or affricate released with an audible puff of air, marked in IPA with superscript h (pʰ, tʰ, kʰ). Measured by voice onset time; allophonic in English, contrastive in Mandarin, Thai, Hindi, and Korean-type systems.
Aspiration pneumonia
Aspiration pneumonia: bacterial lung infection from inhaled oropharyngeal secretions, distinct from chemical aspiration pneumonitis (Mendelson's syndrome). Common in older adults with dysphagia; guidelines now advise against routine anaerobic antibiotic coverage unless abscess or empyema is suspected.
ASPIRE study (NCT07320326)
The ASPIRE study (NCT07320326) is a non-interventional registry led by Peking University People's Hospital observing elranatamab in Chinese patients with triple-class exposed relapsed or refractory multiple myeloma.
Aspirin
Aspirin (acetylsalicylic acid, ASA), Bayer's 1899 NSAID synthesized in pure stable form by Felix Hoffmann in 1897; pain, fever, antiplatelet uses, COX mechanism, USPSTF primary-prevention limits, bleeding and Reye's syndrome risks.
ASPIRIN-LAAO trial
ASPIRIN-LAAO (NCT03821883) is a Chinese, 12-site, double-blind, placebo-controlled non-inferiority trial randomizing 1,120 Watchman LAAO patients at 6 months to aspirin 100 mg/day versus placebo, with a 24-month composite endpoint of stroke, embolism, death, bleeding, and revascularization.
Aspirity Partners
Aspirity Partners is a London-based, Irish-domiciled private equity firm founded by Joe O'Mara and Ralph Choufani, which closed its inaugural fund at over €875 million in 2025.
Aspiro
Aspiro AB was a Swedish media technology company that developed the WiMP and TIDAL music streaming services; Jay Z's Project Panther Bidco bought it for SEK 464 million in 2015.
Aspis/Clipea
Aspis/Clipea, called Clupea by the Romans, was an ancient fortified port on Tunisia's Cap Bon peninsula, at the site of modern Kélibia, destroyed in 146 BC for its loyalty to Carthage.
Aspledon Undae
Aspledon Undae is a 215.20 km dune field (unda) on Mars in Vastitas Borealis near the north polar cap, centered at 73.06°N, 309.65°E; IAU-approved March 20, 2007, named after the classical albedo feature Aspledon, a Boeotian city and son of Poseidon.
Aspledon/Eudeielos
Aspledon (Ἀσπληδών), also Spledon, later Eudeielos (Εὐδείελος), an ancient Boeotian city near Orchomenus named in Homer's Catalogue of Ships, renamed for its sunny situation and abandoned for lack of water.
Aspleniaceae
Aspleniaceae, the spleenwort family, is a cosmopolitan fern family in Polypodiales with two genera, Asplenium (over 700 species) and Hymenasplenium (~30), clathrate scales, and elongate linear sori.
Asplenium
Asplenium, known as spleenworts, is a large genus of ferns in the family Aspleniaceae, first published by Linnaeus in 1753, with over 700 species worldwide.
Asplenium adiantum-nigrum
Asplenium adiantum-nigrum, black spleenwort, is a perennial Aspleniaceae fern with dark stipes and 2-3-pinnate fronds, an allotetraploid hybrid native to Eurasia, Africa, Macaronesia, western North America, and Hawaii.
Asplenium ceterach
Asplenium ceterach (Ceterach officinarum), the rustyback or scale fern, is a European–Macaronesian lithophytic spleenwort with rusty scales on the frond underside, resurrection-plant desiccation tolerance, 2n = 144 tetraploidy, and Least Concern status.
Asplenium hybrids
Asplenium hybrids, crosses between spleenwort species (Asplenium, Aspleniaceae), are frequent and often sterile with aborted spores; examples include A. × heufleri and A. × shikokianum, and chromosome doubling of hybrids has produced allotetraploid species such as A. majoricum, sometimes recurrently.
Asplenium nidus
Asplenium nidus, the bird's nest fern (Neottopteris nidus), is a large tropical epiphytic fern of Aspleniaceae with shiny strap-shaped fronds up to 200 cm, native from Madagascar and Asia to Australia and the Pacific, least concern, and a popular ornamental.
Asplenium pinnatifidum
Asplenium pinnatifidum, lobed spleenwort, is an eastern North American allotetraploid fern (2n=144) from A. montanum × rhizophyllum, growing on acidic sandstone cliffs and producing hybrids ×trudellii, ×gravesii, ×kentuckiense, and ×herb-wagneri.
Asplenium platyneuron
Asplenium platyneuron (ebony spleenwort) is an evergreen spleenwort fern of eastern North America and southern Africa, with once-pinnate dark-rachised fronds, dimorphic fertile and sterile leaves, 2n=72, and a role as diploid progenitor of Appalachian Asplenium hybrids.
Asplenium rhizophyllum
Asplenium rhizophyllum, walking fern (doradille ambulante), a small evergreen spleenwort of eastern North America whose leaf tips root and form new plants; grows on mossy limestone, 2n=72, parent of A. ebenoides and A. pinnatifidum.