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Aditya-L1

Aditya-L1 is India's first space-based solar observatory, launched by ISRO on September 2, 2023, to observe the Sun from a halo orbit around the Sun-Earth L1 point.

Adityawarman

Adityawarman was a 14th-century king of Malayu in central Sumatra, a former senior official of Majapahit in Java who declared himself king at Malayapura in 1347.

Adivar (crater)

Adivar is an impact crater on Venus, about 30 kilometers across and just north of western Aphrodite Terra, notable for its rare radar-bright ejecta streaks and dark parabola.

Adivasi (आदिवासी)

Adivasi (आदिवासी), Hindi for "original inhabitant", is the term for India's indigenous tribal communities, coined politically in the 1930s; distinct from the constitutional category Scheduled Tribe, about 8.6% of India's population.

Adivi Sesh (అదివి శేష్)

Adivi Sesh (అదివి శేష్), born 1985 in Hyderabad, is a Telugu actor-screenwriter known for Kshanam, Goodachari, the biopic Major (2022), and the 2026 bilingual hit Dacoit, with G2 upcoming.

Adiya (queen of the Arabs)

Adiya, also written Adiye, was a queen of the Arabs recorded in the annals of Assurbanipal, dated to 650–647 BC and captured after the Arabs were defeated.

Adiyogi Shiva bust

The Adiyogi Shiva bust is a 112-foot steel sculpture of Shiva as the first yogi at the Isha Yoga Center near Coimbatore, India, the world's largest bust.

Adını Feriha Koydum

Adını Feriha Koydum (The Girl Named Feriha) is a 2011-2012 Turkish romantic drama by MedYapım on Show TV: janitor's daughter Feriha fakes wealth at university and falls for playboy Emir Sarrafoğlu; 67 episodes plus Emir'in Yolu.

Adıyaman (city)

Adıyaman, formerly Hısn-ı Mansur, is the capital of Adıyaman Province in southeastern Turkey, a base for Mount Nemrut and Commagene sites such as Perre; its center was heavily damaged in the February 2023 earthquakes and is being rebuilt.

Adıyaman (district)

Adıyaman Merkez is the central district and seat of Adıyaman Province, Turkey (also Hısn-ı Mansur until 1928). 296,876 residents in 2025, 1,814 km², provincial capital since 1954.

Adjacency list

An adjacency list, also called an adjacency-list representation or adjacency table, is a data structure for representing a graph where each vertex stores a list of its neighbors.

Adjacency matrix

An adjacency matrix, also called a connectivity matrix or sociomatrix, is a square matrix whose entries record the edges, or weights, between a graph's vertices.

Adjara

Adjara (აჭარა), or Ajara, is Georgia's Black Sea autonomous republic with capital Batumi, bordering Turkey. Its religion-based autonomy dates to the 1920s, survived Abashidze's 1991–2004 rule, and is now largely nominal.

Adjara (site)

Adjara (site) is casinoadjara.com, the website of Casino Adjara, a Tbilisi, Georgia casino opened in 1998, the country's oldest, run by Sunshine LLC with offshore owners and adjoined to the Holiday Inn Tbilisi.

Adje Paulen

Adriaan "Adje" Paulen (1902–1985) was a Dutch middle-distance runner and sports administrator who served as president of the IAAF, now World Athletics, from 1976 to 1981.

Adjective

Adjectives are a major word class denoting properties of nouns and pronouns, used attributively and predicatively. Cross-linguistically their class size, behavior relative to nouns and verbs, position, gradability, and comparison vary; Dixon argues every language has one.

Adjoa Andoh

Adjoa Andoh, born 1963, is a British actor best known as Lady Danbury in Netflix's Bridgerton, who starred in and co-directed Richard II at Shakespeare's Globe.

Adjoint functors

Adjoint functors, also called an adjoint situation, are a pair of functors related by a natural bijection of morphisms, introduced by Daniel M. Kan in 1958.

Adjoint method

The adjoint method computes the gradient of a scalar objective with respect to many parameters via one adjoint solve, costing 2 to 5 times one objective evaluation; in neural networks it is known as backpropagation.

Adjoint representation

The adjoint representation is the canonical representation of a Lie algebra on itself, with each element acting as the bracket map, and it encodes the Killing form and root system.

Adjoint sensitivity analysis

Adjoint sensitivity analysis is a computational method that computes gradients of a model output with respect to many parameters at a cost independent of their number.

Adjudication

Adjudication is the legal process of resolving a dispute or deciding a case, and the decision itself. Covers court adjudication, ripeness, res judicata, and U.S. administrative adjudication under the APA, including ALJs and formal versus informal procedures.

Adjudicator

Adjudicator: a neutral decision-maker who renders decisions on disputes, in tribunals, construction contracts, or government complaint review; distinguished from mediators by deciding outcomes, guided by Franks principles of openness, fairness, impartiality.

Adjugate matrix

The adjugate matrix, also called the classical adjoint, is the transpose of a square matrix's cofactor matrix; multiplying it by the matrix gives det(A) times the identity, which yields the inverse.

Adjunct professor

Adjunct professor: a part-time, contract-based college instructor paid per course (about $2,500–$7,000), without tenure or benefits; adjuncts and other contingent faculty now make up roughly 70 percent of US instructional staff.

Adjunctive and non-pharmacological management of rheumatoid arthritis

Adjunctive and non-pharmacological management of rheumatoid arthritis covers glucocorticoid bridging, NSAIDs, exercise, occupational therapy, orthoses, and diet used alongside DMARD therapy; only exercise carries a strong guideline recommendation.

Adjustable gastric band

Adjustable gastric band (LAGB, Lap-Band): inflatable silicone band around the upper stomach for severe obesity, first implanted 1993, FDA approved 2001; gives about 45% excess weight loss but high reoperation rates and near abandonment as a primary procedure.

Adjustable spanner

The adjustable spanner, or adjustable wrench, is a hand tool with one fixed jaw and one jaw that slides on a worm screw to grip many nut sizes.

Adjustable-rate mortgage

An adjustable-rate mortgage, also called a variable-rate mortgage, is a home loan with a fixed rate for an initial period, then periodic resets subject to caps.

Adjusted EBITDA

Adjusted EBITDA is a non-GAAP profitability measure that starts from EBITDA and adds back items such as restructuring charges and stock-based compensation, making it a company-specific figure.