Edgepedia

Atrophoderma vermiculata

Atrophoderma vermiculata (atrophoderma vermiculatum, folliculitis ulerythematosa reticulata) is a rare genetic follicular skin disorder with childhood onset, causing honeycomb atrophy of the cheeks, forehead, and preauricular area; linked to LRP1 and the keratosis pilaris atrophicans spectrum.

Atrophy

Atrophy is the wasting or decrease in size of a body part, cell, organ, or tissue; muscle atrophy comes in physiologic (disuse), pathologic, and neurogenic types, with disuse atrophy reversible through exercise.

Atrophy of breast

Atrophy of breast is a partial or complete decrease in the size and function of breast tissue, caused mainly by prolonged estrogen reduction, ischaemia, malnutrition, or disease.

Oct 20, 2026

Atrophy of pancreas

Atrophy of the pancreas is the progressive loss of pancreatic glandular tissue, often replaced by fat or fibrosis, leaving the organ smaller and less able to function.

Oct 20, 2026

Atrophy of prostate

Atrophy of prostate (ICD-11 GA91.5) is a partial or complete decrease in prostate size and function from apoptosis, ischemia, hormonal changes, or therapy; diffuse and focal forms can mimic adenocarcinoma on biopsy.

Atrophy of salivary gland

Atrophy of salivary gland is a decrease in the size of a salivary gland, classified in ICD-11 as DA04.0 and linked to Sjögren's syndrome, irradiation, and obstructive sialadenitis.

Atrophy of spleen

Atrophy of spleen (splenic atrophy, ICD-11 3B81.2; ICD-10-CM D73.0 hyposplenism) is acquired partial or complete degradation of the spleen, classically autosplenectomy in sickle cell anemia, causing hyposplenism and infection risk.

Atrophy of testis

Atrophy of testis (testicular atrophy, ICD-11 GB03) is shrinkage and loss of function of one or both testes from ischemia, infection, hormonal change, varicocele, torsion, trauma, or aging, causing reduced spermatogenesis and fertility.

Atrophy of tongue papillae

Atrophy of tongue papillae (atrophic glossitis, smooth tongue; ICD-10 K14.4, ICD-11 DA03.2) is loss of filiform and fungiform papillae giving a smooth red tongue, usually from iron, B12, folate, or other deficiencies.

Atropia (fictional country)

Atropia is a fictional country used by the US Army for training. It utilizes mock villages at the Fort Irwin National Training Center in California's Mojave Desert.

Atropia (film)

Atropia is Hailey Gates's 2025 satirical war comedy debut, starring Alia Shawkat and Callum Turner as role players in a fake US military training nation; it won Sundance's 2025 U.S. Grand Jury Prize: Dramatic.

Atropine

Atropine, also called (±)-hyoscyamine, is a belladonna alkaloid and competitive muscarinic receptor antagonist used for bradycardia, organophosphate poisoning, and pupil dilation; racemic, levo isomer active.

Atropisomer

An atropisomer, the subject of atropisomerism, is one of a pair of stereoisomers arising from restricted rotation about a single bond, a form of axial chirality.

Atropos (Ἄτροπος)

Atropos (Ἄτροπος), eldest of the Greek Moirai or Fates, the 'inflexible' one who cuts the thread of life; Roman Morta, namesake of atropine and the death's-head hawkmoth.

Atropos Tessera

Atropos Tessera, a 469-km-wide tessera (deformed high-backscatter terrain) on Venus at 71.5N 304.0E in western Ishtar Terra, IAU-named 1985 for the Greek Fate, paired with Akna Montes.

Sep 29, 2026

Atroposelective synthesis

Atroposelective synthesis is the preparation of chiral atropisomers, molecules whose stereogenic element is a rotationally restricted bond, in enantioenriched form through stereoselective reactions or resolution, chiefly of hindered biaryls.

Atroz

Atroz (Atrocious) is a 2015 Mexican extreme horror film by Lex Ortega, expanded from his 2012 short, about serial killers caught after a car crash whose crime tapes are found; first Mexican gore film in commercial theaters (2018).

Atru Or Ganesh Ganj Mound

Atru or Ganesh Ganj: ASI-protected ruins of tenth-eleventh century Pratihara-period Hindu temples at Atru, Baran district, Rajasthan, including the Siva Gadgach temple; only the Gadia temple remains in worship.

Atrush Oil and Gas Field

The Atrush Oil and Gas Field is an onshore oil field in the Kurdistan Region of Iraq, 85 km northwest of Erbil, discovered in 2011.

ATRX

ATRX (XH2, XNP) is an X-linked gene encoding a SWI/SNF-like chromatin remodeler that with DAXX deposits histone H3.3 at telomeres; germline variants cause ATR-X syndrome and somatic loss drives ALT in gliomas and other cancers.

Atrypa

Atrypa, Dalman 1828, extinct genus of spire-bearing atrypid brachiopods; type species Atrypa reticularis (Linnaeus 1758); Silurian to Devonian fossil lamp shell known worldwide.

ATS (programming language)

ATS (Applied Type System) is a statically typed programming language created by Hongwei Xi, combining ML-style functional programming with dependent and linear types and compiling to C.

ATS Corporation (automation company)

ATS Corporation is a Canadian automation company headquartered in Cambridge, Ontario. Founded in 1978, it designs and builds automated manufacturing systems for life sciences, food, and energy customers.

ATS-class amphibious warfare ship

The ATS class is a planned class of eight amphibious transport ships, four each for the Royal Navy and Royal Netherlands Navy, agreed in 2026.

ATSC 1.0

ATSC 1.0 is the first digital television standard from the Advanced Television Systems Committee, adopted by the FCC in 1996 and still required for US full-power broadcasters.

ATSC 3.0

ATSC 3.0, marketed in the United States as NextGen TV, is a next-generation digital television broadcast standard using IP-based OFDM transmission, replacing ATSC 1.0 and offering 4K and mobile reception.

ATSC-M/H

ATSC-M/H is a broadcast standard, adopted in 2009 as ATSC A/153, that lets North American TV stations deliver television to mobile and handheld receivers over existing channels.

AtScale

AtScale is an American enterprise software company founded in 2013 by Dave Mariani whose Universal Semantic Layer defines business metrics once for BI tools and AI agents.

Atse Estsan Corona

Atse Estsan Corona is a 150-km-diameter corona on Venus at 8.5N, 92.0E in the Niobe Planitia region, named in 1994 for a Navajo fertility goddess (Atse-Estsan, First Woman).