Editing ABC (section)

==Science and technology==
===Biology and medicine===
* [[Abacavir]], an antiretroviral drug used to treat HIV/AIDS
* [[ABC (medicine)]], a mnemonic for "Airway, Breathing, Circulation"
* [[ABC model of flower development]], a genetic model
* [[Abortion–breast cancer hypothesis]], a posited connection between breast cancer and abortion
* [[Alien big cat]], a large feline outside its indigenous range
* [[Aneurysmal bone cyst]], a kind of lesion
* [[ATP-binding cassette transporter]], a transmembrane protein

===Computing===
====Hardware====
* ABC, a line of computers by [[Dataindustrier AB]]
* [[Acorn Business Computer]], a series of microcomputers announced at the end of 1983 by the British company Acorn Computers
* [[Atanasoff–Berry computer]], an early electronic digital computer

====Software====
* [[ABC (computer virus)]], a memory-resident, file-infecting computer virus
* [[ABC (programming language)]], a programming language and environment
* [[ABC (stream cipher)]], a stream cipher algorithm
* [[Abstract base class]], a programming language concept
* [[Artificial bee colony algorithm]], a search algorithm
* [[.abc]], several file formats

===Mathematics===
* [[ABC formula]]
* [[Approximate Bayesian computation]], a family of statistical techniques
* [[abc conjecture|''abc'' conjecture]], a concept in number theory

===Other science and technology===
* [[ABC dry chemical]], a fire extinguishing agent
* ABC weapon (atomic, biological, and chemical), a [[weapon of mass destruction]] 
* [[Accelerated bridge construction]], a technique for building bridges
* [[Aerial bundled cable]], for power lines
* [[Airborne Cigar]], a British military electronic countermeasure system used during World War II
* Atomic, biological, and chemical defense; now [[CBRN defense]] (chemical, biological, radiological, and nuclear)