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Allylic C–H functionalization
Allylic C–H functionalization is a class of chemical reactions in which the hydrogen adjacent to a double bond is replaced directly, without pre-functionalizing the substrate.
Allylic rearrangement
An allylic rearrangement, also called an allylic shift, is an organic reaction in which an allyl compound's double bond moves to the adjacent carbon, trading positions with the functional group.
Allylic substitution
Allylic substitution is an organic reaction in which a nucleophile replaces a leaving group at an allylic position, the carbon next to a double bond, often metal-catalyzed.
Allyn A. Young
Allyn A. Young, also known as Allyn Abbott Young, was an American economist at Harvard and the London School of Economics, president of the American Economic Association in 1925.
Allyn Ann McLerie
Allyn Ann McLerie (1926–2018), also billed as Allyn McLerie, was a Quebec-born, Brooklyn-raised Broadway actress, singer, and dancer who created Amy Spettigue in Where's Charley?, won a 1949 Theatre World Award, and became a screen character actress in Calamity Jane, They Shoot Horses, Don't They?, and The Days and Nights of Molly Dodd.
Allyn Vine
Allyn Vine (1914–1994) was an American physicist and oceanographer at Woods Hole Oceanographic Institution from 1940 whose advocacy produced the deep-diving research submersible Alvin, named as a contraction of his name.
Allyne R. Ross
Allyne R. Ross, born 1946, is an American jurist serving as a senior judge on the United States District Court for the Eastern District of New York since 2011.
Allysha Chapman
Allysha Chapman, Canadian left-back for Houston Dash and Canada's women's national team; Olympic gold (Tokyo 2020) and bronze (Rio 2016), three World Cups, 100 caps, retired internationally October 2026.
Allyson Felix
Allyson Michelle Felix (born 1985) is an American retired sprinter, the most decorated track and field athlete ever with 11 Olympic and 20 World Championships medals, a Nike maternity-rights advocate, Saysh founder, and LA 2028 comeback hopeful.
Allyson M Pollock
Allyson M Pollock, also published as Allyson Pollock, is a British public health physician and emerita professor at Newcastle University known for research on NHS privatization.
Allyson Mackey
Allyson Mackey is an American developmental cognitive neuroscientist and associate professor of psychology at the University of Pennsylvania, known for research on how brain changes drive shifts in the mind.
Alma
Alma is a French fintech, founded in 2018 by Louis Chatriot and Guillaume Desloges, that lets merchants offer installment payments while being paid immediately, reaching profitability in 2025.
ALMA – Citizens for Cyprus
ALMA – Citizens for Cyprus (ΑΛΜΑ – Πολίτες για την Κύπρο) is a Cypriot centrist, reformist anti-corruption party founded in 2025 by former Auditor General Odysseas Michaelides; it joined the European Democratic Party and won 5.8% and 4 seats in the 2026 House election.
Alma (Finnish singer)
Alma (Alma-Sofia Miettinen, born 1996, Kuopio) is a Finnish pop singer-songwriter behind "Karma", "Dye My Hair", and "Chasing Highs", albums Have U Seen Her? and Time Machine, and cowrites for Miley Cyrus; distinct from Alma Alanko and Alma Pöysti.
Alma Adams
Alma S. Adams, born in 1946, is an American Democratic politician who has represented North Carolina's 12th district in the U.S. House since a 2014 special election.
Alma Allen (Texas politician)
Alma Allen is an American Democratic politician who represented Texas House District 131, first elected in 2004 after a decade on the State Board of Education.
Alma América
Alma América is a 1906 poetry collection by the Peruvian poet José Santos Chocano, published in Madrid and considered the central book of his career and a landmark of Peruvian modernismo.
Alma and the Wolf
Alma and the Wolf (Alma & the Wolf) is a 2025 American psychological horror-mystery film directed by Michael Patrick Jann, starring Ethan Embry as Deputy Ren Accord and Li Jun Li as Alma, about a wolf attack in Spiral Creek, Oregon, and a missing son; released June 20, 2025 by Republic Pictures.
Alma Cogan
Alma Cogan (Alma Angela Cohen, 1932-1966), British pop singer of the 1950s, 'girl with the laugh in her voice'; 18 UK chart entries, No. 1 with Dreamboat (1955), own BBC TV show, later subject of Gordon Burn's novel Alma.
Alma Cooper
Alma Oralia Minerva Cooper, born 2002 in Okemos, Michigan, is a U.S. Army officer, West Point graduate, Knight-Hennessy scholar at Stanford, and Miss USA 2024, the first active-duty service member to hold that title.
Alma Deutscher
Alma Deutscher is a British composer and violinist known for her classical-romantic style. She won the European Culture Prize in 2019 and wrote the opera Cinderella.
Alma Hernandez
Alma Hernandez is an American Democratic politician from Tucson, a member of the Arizona House of Representatives from the 20th district who ran for state Senate in 2026.
Alma Mahler
Alma Mahler (1879-1964), born Alma Schindler, Viennese composer of songs and wife of Gustav Mahler, Walter Gropius, and Franz Werfel; known for her 17 published lieder, her memoirs shaping the Alma Problem, and later reassessment as a composer.
Alma mater
Alma mater, Latin for "nourishing mother" (almus + mater), originally an epithet of Roman goddesses such as Ceres and Cybele and of the Virgin Mary; in English since 1710 it means the school or university one graduated from, or a school's official anthem.
Alma Reville
Alma Reville (Alma Lucy Reville, Lady Hitchcock, 1899-1982), English screenwriter, editor and script supervisor; Alfred Hitchcock's wife and closest collaborator, credited on Suspicion, Shadow of a Doubt, The Paradine Case and Stage Fright.
Alma Richards
Alma Wilford Richards (1890-1963), American high jumper from Parowan, Utah; won 1912 Stockholm Olympic high jump gold at 1.93 m, first Olympic champion from Utah, later AAU decathlon champion and Los Angeles science teacher.
Alma-Ata Protocol (Алма-Атинский протокол)
The Alma-Ata Protocol (Алма-Атинский протокол) is the 21 December 1991 protocol to the CIS founding agreement, signed at Alma-Ata when eight more Soviet republics joined the Belavezha Accords; adopted alongside the Alma-Ata Declaration declaring the USSR's dissolution.
Alma-chan Wants to Be a Family! (アルマちゃんは家族になりたい)
Alma-chan Wants to Be a Family! (アルマちゃんは家族になりたい), Japanese comedy-romance-scifi web manga by Nanateru on Comic Newtype (2021-2024, 3 volumes), about combat android Alma calling her creators Mom and Dad; Studio Flad TV anime aired October-December 2025; Yen Press licensed it in English.
Alma-Merghen Planitia
Alma-Merghen Planitia is a 1,500-km-diameter lowland plain (planitia) on Venus at 76°S, 100°E, IAU-named in 1997 after the heroine of the Mongol/Tibet/Buryat Gheser epic.
Almagest
The Almagest, originally titled Mathematike Syntaxis, is a thirteen-book treatise on mathematical astronomy written by Claudius Ptolemy in Alexandria around AD 150, covering the Sun, Moon, planets, and a catalog of 1,025 stars.