Edgepedia

Antibody test

An antibody test, also called a serological test, is a blood test that detects antibodies against a pathogen or antigen to show prior infection, immune response, or vaccination status.

Antibody-dependent complement deposition assay

The antibody-dependent complement deposition (ADCD) assay is a bead-based flow cytometry serology assay that quantifies complement proteins deposited by antibodies in serum or plasma, reported in 2019.

Antibody-dependent enhancement

Antibody-dependent enhancement (ADE): sub-neutralizing or non-neutralizing antibodies facilitate viral entry via Fc receptors, worsening diseases like dengue; key concern for dengue vaccines such as Dengvaxia and coronavirus countermeasures.

Antibody-directed enzyme prodrug therapy

Antibody-directed enzyme prodrug therapy (ADEPT) is a two-step cancer treatment in which an antibody-enzyme conjugate targets tumor cells, activating a nontoxic prodrug into a cytotoxic drug at the tumor site.

Antibonding orbital

An antibonding orbital is a high-energy molecular orbital formed from the out-of-phase combination of atomic orbitals, with a node between the nuclei that destabilizes the bond.

Antica trattoria Bagutto

Antica trattoria Bagutto is a historic restaurant in Milan's Ponte Lambro district, described as Italy's oldest trattoria and Europe's second-oldest restaurant, tracing its origin to a 1284 deed.

Anticaria

Anticaria (Antikaria), ancient Roman city in Turdetania identified with Antequera, Málaga, Spain; mansio in the Antonine Itinerary, municipium, later Colonia Anticaria Sulpicia under Galba, with baths, necropolises, and the Villa Romana de la Estación.

Anticestodal drugs and treatment

Anticestodal drugs are medicines that kill or expel tapeworms. Praziquantel cures most intestinal infections in a single dose, while albendazole treats tissue stages such as cysticercosis and echinococcosis.

Antichain

An antichain is a subset of a partially ordered set in which no two distinct elements are comparable; its maximum size is called the poset's width.

Antichak Mound

Antichak Mound, Bhagalpur district, Bihar, India, is the excavated mound identified as Vikramshila (Vikramaśīla) Mahavihara, a Pala-era Buddhist monastery: 330 m square, about 208 cells, dug 1960-69 and 1972-81, reopened by ASI in 2024.

Oct 22, 2026

Antichiral edge states

Antichiral edge states are conducting modes that propagate in the same direction along two parallel boundaries, with a counter-propagating bulk current keeping the sample neutral.

Anticholinergic

Anticholinergic drugs competitively block acetylcholine at muscarinic receptors; over 600 medications have anticholinergic activity. Key issues are anticholinergic burden scales, cognitive adverse effects, possible dementia risk, and toxicity treated with physostigmine.

Antichrist

The Antichrist is a New Testament term for one who opposes Christ, appearing only in the letters of John and later developed into an end-times figure.

Antichrist (film)

Antichrist is Lars von Trier's 2009 English-language horror film starring Willem Dafoe and Charlotte Gainsbourg as grieving parents at a forest cabin called Eden; it competed at Cannes 2009, won Gainsbourg Best Actress, and was banned to under-18s in France.

Antichrist Superstar

Antichrist Superstar is Marilyn Manson's second studio album, released October 8, 1996, produced by Trent Reznor at Nothing Studios; it debuted at number 3 on the Billboard 200, went platinum, and opens the Triptych trilogy.

Anticipated transient without scram

An anticipated transient without scram (ATWS) is a nuclear reactor accident sequence in which the reactor fails to shut down automatically during an anticipated transient.

Anticipatory bail

Anticipatory bail, India's pre-arrest bail under Section 438 CrPC, now Section 482 BNSS, lets a person fearing arrest for a non-bailable offence obtain bail in advance; Sushila Aggarwal (2020) made it normally non time-limited.

Anticipatory robot control

Anticipatory robot control is a control paradigm in which a robot predicts a human partner's intent from signals like gaze and acts in advance, mainly in human-robot collaboration.

Anticitrullinated protein antibody negative

Anticitrullinated protein antibody negative (ACPA-negative, ICD-11 MA14.11): absence of detectable anti-CCP antibodies in serum. A negative test does not rule out rheumatoid arthritis; with negative rheumatoid factor it defines seronegative RA.

Anticitrullinated protein antibody positive

ACPA positive (anti-CCP positive): blood autoantibodies against citrullinated peptides, strongly associated with rheumatoid arthritis; pooled sensitivity 67%, specificity 95%, detectable years before RA onset, also positive in some other diseases.

Oct 22, 2026

Anticlaudianus

The Anticlaudianus is an allegorical Latin epic in ten books by Alan of Lille, written around 1182 in northern France, describing the creation of the perfect man.

Anticlea

Anticlea Kunth (1843) is a genus of ten bulbous Melanthiaceae species, the death camas, native from eastern Europe and temperate Asia to North America and Guatemala; the same name also denotes a geometrid moth genus.

Anticleia (crater on Tethys)

Anticleia is a 100.70-km-diameter IAU-approved impact crater on Saturn's moon Tethys at 51.31°N, 32.37°W, named in 1982 for the mythological mother of Odysseus.

Anticline

An anticline is an arch-shaped fold in layered rock whose core holds the stratigraphically oldest strata, formed when crustal compression buckles the layers; anticlines are major petroleum traps.

Anticoagulant

Anticoagulant drugs (warfarin, heparins, DOACs apixaban, rivaroxaban, edoxaban, dabigatran) inhibit coagulation factors to prevent and treat VTE and atrial fibrillation stroke; includes INR targets, reversal agents, and andexanet alfa's 2025 withdrawal.

Anticoagulation Bridge

Anticoagulation bridge (bridging anticoagulation, heparin bridging): temporary UFH or LMWH given while warfarin or a DOAC is interrupted for surgery. Trials show added bleeding without fewer clots; guidelines restrict it to highest-risk patients.

Anticoagulation reversal

Anticoagulation reversal is the use of specific antidotes and blood products to counteract anticoagulant drugs in major bleeding or before urgent surgery, using agents like idarucizumab and 4F-PCC.

Anticodon-binding

Anticodon-binding: recognition of the tRNA anticodon by protein domains, chiefly the anticodon-binding domains (ABD, IPR004154, HGTP_anticodon, DALR) of aminoacyl-tRNA synthetases, which determine tRNA identity, enhance kcat, and arose about 3 billion years ago.

Anticonvulsant

Anticonvulsants, also called antiseizure medications or antiepileptic drugs, treat seizures by controlling abnormal brain electrical activity; about 30 exist, controlling seizures in roughly 70% of people with epilepsy, with uses beyond epilepsy including migraine and neuropathic pain.