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Andrija Mohorovičić
Andrija Mohorovičić (1857–1936) was a Croatian geophysicist and seismologist who discovered the Moho, the crust–mantle boundary, by analyzing seismograms of the 1909 Kupa Valley earthquake.
Andrija Radović
Andrija Radović (1872–1947) was a Montenegrin politician who twice served as prime minister of Montenegro and became a leading advocate of uniting Montenegro with Serbia.
Andrija Živković (Андрија Живковић)
Andrija Živković (Андрија Живковић), born 1996 in Niš, Serbian left-footed winger for PAOK and Serbia; youngest-ever Serbia debutant, 2015 U-20 World Cup winner, ex-Partizan and Benfica.
Andris Kulbergs
Andris Kulbergs, born 1979, is Latvia's prime minister since 28 May 2026 and founder of the United List (Apvienotais saraksts); a businessman elected to the Saeima in 2022, his party won a record 35.3% in the October 2026 election.
Andris Šics
Andris Šics (born 1985 in Sigulda, Latvia) is a Latvian former luger who won three Olympic medals in doubles luge with his brother Juris, then joined the International Luge Federation.
Andritz
Andritz is an Austrian technology group founded in 1852 in Graz, supplying equipment for hydropower, pulp and paper, metals, and environmental sectors worldwide, with about 30,000 employees.
Andrius Kazlauskas
Andrius Kazlauskas (born 1959) is an American vascular biologist known for defining how the PDGF receptor signals inside cells, and now studies diabetic retinopathy at the University of Illinois Chicago.
Andrius Kubilius
Andrius Kubilius is a Lithuanian politician of the Homeland Union, born in 1956 in Vilnius, who has been European Commissioner for Defence and Space since December 2024.
Andriy Hovorov
Andriy Hovorov (Andrii Govorov, Андрій Говоров), Ukrainian sprint swimmer born 1992, holds the 50m butterfly long course world record at 22.27 (Rome, 2018), won double Youth Olympic gold in 2010, and joined the 2026 Enhanced Games.
Andriy Kuharsky
Andriy Kuharsky (also rendered Andrew Kuharsky) is a Ukrainian-born quantitative researcher who worked at the Houston trading firm Quantlab, then co-founded SXP Analytics, a high-frequency trading firm.
Andriy Lunin (Андрій Олексійович Лунін)
Andriy Lunin (Андрій Олексійович Лунін), born 1999 in Krasnograd, Ukraine, is a Real Madrid and Ukraine goalkeeper. Signed in 2018, loaned to Leganes, Valladolid, and Oviedo, he starred in 2023-24, saving two penalties against Manchester City, and has won 11 titles with Real Madrid.
Andriy Raykovych
Andriy Raykovych (Андрій Райкович), born 1956, is a Ukrainian politician appointed by President Zelensky in 2022 as head of Kirovohrad Oblast, after two terms as mayor of Kropyvnytskyi.
Andriy Serdinov
Andriy Serdinov (Андрій Вікторович Сердінов), Ukrainian butterfly swimmer born 1982 in Luhansk; 2004 Olympic 100 m butterfly bronze medalist and 2003 world record holder at 51.76.
Andriy Shevchenko (Андрій Миколайович Шевченко)
Andriy Shevchenko (Андрій Миколайович Шевченко), born 1976, Ukrainian striker for Dynamo Kyiv, AC Milan, and Chelsea; 2004 Ballon d'Or winner, Ukraine's all-time top scorer (48 goals in 111 caps), later Ukraine coach and UAF president.
Andriy Yarmolenko (Андрій Миколайович Ярмоленко)
Andriy Yarmolenko (Андрій Ярмоленко), born 1989 in St Petersburg, Ukrainian winger/midfielder of Dynamo Kyiv; 126 caps and 47 goals for Ukraine, one behind Shevchenko's record, 700 Dynamo appearances.
Andro Knego
Andro Knego (Andrija Knego), Croatian center born 1956 in Dubrovnik; won Olympic gold 1980, silver 1976, bronze 1984 with Yugoslavia and starred for KK Cibona.
Androgen
Androgen: steroid hormones (testosterone, DHT, DHEA) that activate the androgen receptor, a single X-chromosome gene product, driving male development and acting in both sexes; DHT is 3-10 times more potent, and FDA labeling of testosterone therapy changed after the TRAVERSE trial.
Androgen biosynthesis
Androgen biosynthesis (Reactome R-HSA-193048): the steroidogenic pathway converting cholesterol via pregnenolone, DHEA, and androstenedione to testosterone and DHT, catalyzed by CYP11A1, CYP17A1, HSD3B, HSD17B3, and SRD5A enzymes.
Androgen deprivation therapy
Androgen deprivation therapy (ADT) is a prostate cancer treatment that suppresses testosterone or blocks androgen receptors to slow tumor growth, used from recurrence to metastatic disease.
Androgen insensitivity syndrome
Androgen insensitivity syndrome (AIS, testicular feminization) is an X-linked AR-gene disorder in 46,XY people whose cells cannot respond to androgens, with complete, partial, and mild forms.
Androgen receptor
Androgen receptor (AR, NR3C4): nuclear receptor protein on Xq12 that binds testosterone and DHT, translocates to the nucleus, and activates androgen-responsive genes; central to prostate growth, prostate cancer therapy, SBMA, and androgen insensitivity.
Androgen therapy
Androgen therapy is the medical administration of androgen hormones, most often testosterone, to restore normal levels and relieve symptoms of androgen deficiency, chiefly male hypogonadism.
Androgeos Linea
Androgeos Linea is a 723 km double ridge (linea) on Jupiter's moon Europa, IAU-named in 2000 after a son of Minos, rising about 300 m above Europa's ridged plains near Conamara Chaos.
Andrographis
Andrographis (king of bitters; A. paniculata, kalmegh, chuan xin lian) is a genus of 27 accepted Acanthaceae herbs native to the Indian Subcontinent to Myanmar, source of andrographolide.
Andrographis paniculata
Andrographis paniculata, known as King of Bitters or kalmegh, is an annual acanthus herb native to the Indian subcontinent and used for centuries in traditional Asian medicine.
Andrographolide
Andrographolide is a labdane diterpenoid isolated from the leaves and roots of Andrographis paniculata, an herb used in Chinese and ayurvedic medicine, studied for anti-inflammatory and anticancer effects but limited by poor bioavailability.
Androgyny
Androgyny describes a single person who combines masculine and feminine traits in gender identity, gender expression, or sexual orientation, and may also denote a third gender category.
Android
Android is an open source, Linux-based operating system developed by Google and the Android Open Source Project, launched in 2008 and now powering over 3 billion devices worldwide.
Android (operating system)
Android is a free, open-source, Linux-based operating system for smartphones and tablets, developed by Google since acquiring Android Inc. in 2005 and released through AOSP.
Android (robot)
An android is a robot built to resemble a human in appearance, more humanlike than a humanoid robot; the term is debated and tied to the uncanny valley.