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Alburnus Portus
Alburnus Portus (Portus Alburnus), ancient river port on the Silarus-Sele river near Paestum, Campania, named from Alburnus mons; distinct from the Dacian mining town Alburnus Maior; location debated between the river mouth and an inland road crossing.
Alburnus tarichi
Alburnus tarichi, the tarek or pearl mullet, is a small fish endemic to saline, alkaline Lake Van in eastern Türkiye that migrates into freshwater streams to spawn.
Albury–Wodonga
Albury–Wodonga: twin cities on the Murray River straddling the NSW–Victoria border, combined population about 100,000, Australia's 20th largest city, site of the 1973 national growth centre experiment.
Albus Dumbledore
Albus Dumbledore, full name Albus Percival Wulfric Brian Dumbledore, is a fictional wizard in J.K. Rowling's Harry Potter series, Headmaster of Hogwarts and Harry Potter's mentor.
Albus Portus
Albus Portus, Latin for White Harbour, is the name of Leukos Limen, a Red Sea port in Egypt attested only by Ptolemy, and of a mansio near Algeciras, Spain; its Egyptian location is debated between Quseir al-Qadim and Marsa Mubarak.
Albusomatropin
Albusomatropin (TV-1106, Albutropin) is an 88 kDa human serum albumin-human growth hormone fusion protein developed by Teva as a once-weekly growth hormone; development was discontinued in 2016 after neutralizing antibodies appeared in a pediatric phase 2 trial.
Albuts Museum-Estate of Yakub Kolas
Музей-сядзіба Якуба Коласа «Альбуць» (Albuć memorial estate) is a branch of the Yakub Kolas museum in Stowbtsy district, Belarus, on the 1890–1904 home of the poet's forester father, depicted as Parechcha in Novaya ziamlia.
Albuvirtide
Albuvirtide (ABT, Aikening, FB006M) is a long-acting injectable HIV-1 fusion inhibitor peptide from Frontier Biotechnologies, albumin-binding via MPA, half-life 10-13 days, approved in China and Malaysia.
Albys Vallis
Albys Vallis is an IAU-approved valley (vallis) on Venus, 240 km across, centered at 39.5°S, 30.5°E, named in 1997 for a Tuva/Altay river deity, one of 72 named Venusian valles.
ALC (submarine cable)
ALC, or Asia Link Cable (亚洲快链), is a China Telecom-led submarine communications cable linking Hong Kong and Singapore with branches to five more Asian destinations.
ALC-0315
ALC-0315 is a biodegradable synthetic ionizable cationic lipid that binds mRNA in the Pfizer–BioNTech COVID-19 vaccine's lipid nanoparticles, condensing it during manufacture and aiding its release inside cells.
Alca
Alca is a monotypic auk genus whose sole living species is the razorbill, Alca torda, the closest living relative of the extinct great auk, with a rich Miocene-Pliocene fossil record.
Alcabala
The alcabala was a Spanish sales tax of Arab origin, established in Castile by Alfonso XI in 1342 and extended to Spain's American colonies in the late sixteenth century.
Alcaeus
Alcaeus was an ancient Greek lyric poet of Mytilene on Lesbos, born around 625 BCE and an older contemporary of Sappho, known for the Alcaic stanza later imitated by Horace.
Alcaftadine
Alcaftadine is a topical antihistamine and mast-cell stabilizer used as a 0.25% eye drop, sold as Lastacaft, approved in 2010 to prevent itching from allergic conjunctivitis.
Alcaic stanza
The Alcaic stanza is a four-line lyric stanza invented by the Greek poet Alcaeus of Lesbos, best known through Horace's Latin odes, in 37 of which he used it.
Alcalá de Henares
Alcalá de Henares, a city of 203,208 (2025) in the Community of Madrid 30 km from Madrid; Roman Complutum, site of the world's first planned university city, UNESCO World Heritage since 1998 and Cervantes's birthplace.
Alcaligenes
Alcaligenes, a genus of Gram-negative, aerobic, motile betaproteobacteria in Alcaligenaceae named for alkali production; type species A. faecalis, an opportunistic pathogen and bioremediation bacterium.
Alcaligenes faecalis
Alcaligenes faecalis is a Gram-negative, aerobic, rod-shaped bacterium living in soil, water, and fecal matter, first described in 1919, that acts as an opportunistic human pathogen and is used in wastewater nitrogen removal.
ALCAM
ALCAM (CD166), activated leukocyte cell adhesion molecule, is an immunoglobulin superfamily transmembrane glycoprotein and CD6 ligand; a cell adhesion protein, cancer stem cell marker, and prognostic biomarker shed by ADAM17 and MMP14.
Alcander (crater on Dione)
Alcander is a 120-km-wide impact crater on Saturn's moon Dione at 52.89 degrees south, 295.49 degrees west, named by the IAU in 2011 after a Trojan warrior in Virgil's Aeneid, near Prytanis in Dione's tectonically deformed wispy terrain.
Alcántara
Alcántara, town in Cáceres, Extremadura, Spain, named from Arabic for "the bridge". Home of the Roman bridge over the Tagus by Caius Iulius Lacer, dedicated to Trajan, and seat of the Military Order of Alcántara from 1218.
Alcantara (material)
Alcantara (material): a proprietary Italian synthetic suede-like microfiber of 68% polyester and 32% polyurethane, invented by Miyoshi Okamoto and produced since 1972 by Alcantara S.p.A. Used in car interiors, fashion, and electronics; carbon-neutral certified since 2009.
Alcántara Bridge
The Puente de Alcántara is a Roman stone arch bridge over the Tajo at Alcántara, Extremadura, Spain, completed about 104 AD and still remarkably intact.
Alcântara Formation
The Alcântara Formation (Formação Alcântara) is a Cenomanian rock unit of the Itapecuru Group in the São Luís Basin, Maranhão, Brazil, exposed in coastal cliffs near the town of Alcântara.
Alcântara Space Center
The Alcântara Space Center (Centro de Lançamento de Alcântara) is Brazil's satellite launch center, run by the Brazilian Air Force on the Maranhão coast since 1983.
Alcântara, Maranhão
Alcântara is a municipality on the western coast of Maranhão, Brazil, across the Baía de São Marcos from São Luís, known for its colonial center and quilombola communities.
Alcaraz–Sinner rivalry
Alcaraz–Sinner rivalry: Carlos Alcaraz vs Jannik Sinner, men's tennis' leading post-Big Three matchup since 2021; Alcaraz led the head-to-head 10-6 after 16 matches through the 2025 ATP Finals.
Alcatel
Alcatel, also known as Alcatel-Alsthom, was a French telecommunications equipment company whose roots trace to CGE, founded in 1898; it merged with Lucent Technologies in 2006 to form Alcatel-Lucent.
Alcatel E10
The Alcatel E10 is a family of French electronic time-division telephone switching systems developed by CNET and CIT-Alcatel, first serving rural exchanges in Brittany in 1972 and produced into the 2000s.