All articles starting with L
25,375 articles
Lenstra–Lenstra–Lovász lattice basis reduction algorithm
The Lenstra–Lenstra–Lovász (LLL) algorithm, introduced by Arjen Lenstra, Hendrik Lenstra, and László Lovász in 1982, transforms any lattice basis into a reduced basis with short, nearly orthogonal vectors in polynomial time.
Lent
Lent, the Lenten season, is a Christian penitential season of about 40 days of prayer, fasting, and almsgiving preparing for Easter, beginning on Ash Wednesday in the West.
Lenthay
Lenthay is an area of Sherborne, Dorset, historically common meadow, now a housing estate. It is the site of a Roman villa whose 1836 Apollo-and-Marsyas tessellated pavement survives at Sherborne Castle.
Lentibulariaceae
Lentibulariaceae, the bladderwort family (Lentibulariaceae Rich., 1808), is the largest carnivorous plant family in Lamiales, with three genera: Pinguicula (flypaper traps), Genlisea (eel traps), and Utricularia (suction bladders).
Lenticular galaxy
A lenticular galaxy (Hubble type S0) has a bright bulge and a flattened disk like a spiral galaxy, but no spiral arms and little ongoing star formation.
Lenticular lens
A lenticular lens, also called a lenticular screen, is a plastic sheet of parallel cylindrical lenses that sends different images to different viewing angles, enabling 3D prints and glasses-free displays.
Lenticular printing
Lenticular printing, also called wiggle pictures, is a technique that combines an interlaced image with a plastic sheet of cylindrical lenses, producing flips, animations, and 3D effects without glasses.
Lentigo
Lentigo (plural lentigines) is a benign pigmented skin lesion with increased basal melanocytes, unlike a freckle (ephelis). Main types are lentigo simplex and solar lentigo (liver spots) from UV exposure.
Lentil
Lentil (Lens culinaris Medik.), an annual self-pollinating pulse legume domesticated about 8,500 years ago in the Near East; grown in 53 countries for protein-rich seeds, led by Canada and India.
Lentilly
Lentilly is a commune in the Rhône department, France, about 18 km northwest of Lyon, with a Chalcolithic dagger, a La Tène farm at Les Fourches, the Brévenne aqueduct arcades, the fanum of Mercruy, and an 1866 hoard of about 200 Julio-Claudian gold aurei.
Lentinula
Lentinula is a genus of white-rot Agaricales fungi (Omphalotaceae) containing shiitake, Lentinula edodes; about nine species, 15 phylogenetic lineages, Neotropical origin ca. 30 Ma, Fagaceae ancestral substrate.
Lentivirus
Lentivirus, historically the subfamily Lentivirinae, is a genus of non-oncogenic Retroviridae retroviruses named for slow multi-organ disease after long incubation; it includes HIV-1, HIV-2, SIVs, and animal viruses.
Lentivirus capartenc
Lentivirus capartenc, the ICTV species name for caprine arthritis encephalitis virus (CAEV), is a goat lentivirus in Retroviridae causing chronic arthritis in adults and leukoencephalomyelitis in kids, transmitted via milk and colostrum.
Lentivirus equinfane
Lentivirus equinfane, the ICTV species name adopted in 2023 for equine infectious anemia virus (EIAV), a Lentivirus genus retrovirus causing swamp fever in equids only; lifelong carriers, tabanid fly and iatrogenic blood transmission, no vaccine or treatment, Coggins-test control.
Lentivirus humimdef1
Lentivirus humimdef1 is the ICTV binomial species name for HIV-1, the lentivirus retrovirus causing AIDS; chimpanzee-origin virus discovered 1983, 41 million people living with HIV in 2025, no cure but treatable with ART.
Lentivirus simimdef
Lentivirus simimdef, the ICTV species for simian immunodeficiency virus (SIV), a primate lentivirus of Retroviridae; first isolated 1984 from rhesus macaques; SIVcpz gave rise to HIV-1 and SIVsmm to HIV-2.
Lentra
Lentra is an Indian fintech SaaS company founded in 2018 that sells cloud-native lending infrastructure to banks and NBFCs, covering origination, underwriting, servicing, and collections.
Lentswe I
Lentswe I (circa 1857–1924) was the kgosi, or chief, of the Bakgatla, a Tswana people whose reserve, Kgatleng, lies in what is now Botswana near the South African border.
Lenvatinib
Lenvatinib, also known as Lenvima, is an oral multikinase inhibitor marketed by Eisai that was first approved in 2015 for radioactive iodine-refractory differentiated thyroid cancer.
Lenvatinib plus pembrolizumab
Lenvatinib plus pembrolizumab is a combination cancer therapy pairing the oral kinase inhibitor lenvatinib with the anti–PD-1 antibody pembrolizumab, FDA-approved for advanced renal cell carcinoma and endometrial carcinoma.
Lenvatinib regimen
A lenvatinib regimen is an oral cancer treatment built around lenvatinib, a once-daily tyrosine kinase inhibitor given alone or with pembrolizumab, everolimus, or belzutifan for thyroid, liver, kidney, and endometrial cancers.
Lenz
Lenz is an 1835 novella by Georg Büchner that portrays the poet Jakob Michael Reinhold Lenz descending into mental illness while staying with pastor Johann Friedrich Oberlin in the Vosges mountains.
Lenz-Majewski hyperostotic dysplasia
Lenz-Majewski hyperostotic dysplasia (Lenz-Majewski syndrome, LMHD) is an ultra-rare autosomal dominant bone dysplasia caused by gain-of-function PTDSS1 variants, with craniotubular hyperostosis, cutis laxa, intellectual disability, and about 23 reported cases.
Lenz's law
Lenz's law is the rule of electromagnetic induction that an induced current opposes the change in magnetic flux causing it, formulated by Heinrich Lenz in 1833.
Lenzilumab
Lenzilumab (KB003) is a humanized IgG1κ monoclonal antibody neutralizing GM-CSF, trialed in rheumatoid arthritis, asthma, CMML, CAR-T CRS, and COVID-19 (LIVE-AIR phase 3); EUA rejected, not approved.
Leo (2023 American film)
Leo (2023 American film): Netflix animated musical comedy, also called the Adam Sandler lizard movie, directed by Marianetti, Smigel, and Wachtenheim; 74-year-old class-pet lizard, 84% Tomatometer, 34.6M views in six days.
LEO (computer)
LEO (Lyons Electronic Office) was a family of British computers built by J. Lyons and Co.; LEO I ran the world's first business computer job in 1951.
Leo (constellation)
Leo, the Lion, is a zodiacal constellation of the northern sky between Cancer and Virgo, recognizable by the Sickle of stars anchored by its brightest star, Regulus.
Leo (லியோ) (2023 Indian film)
Leo (லியோ) is a 2023 Tamil action crime thriller directed by Lokesh Kanagaraj, starring Vijay as café owner Parthiban mistaken for gangster Leo Das; released 19 October 2023, a major box-office hit with mixed reviews, streaming on Netflix.
Leo A. Paquette
Leo A. Paquette (1934–2019) was an American organic chemist at Ohio State University best known for the first synthesis of dodecahedrane in 1982 and over 50 total syntheses.