Pac or PAC may refer to:

Military

* Rapid Deployment Force (Malaysia), an armed forces unit * Patriot Advanced Capability, of the

MIM-104 Patriot The MIM-104 Patriot is a surface-to-air missile (SAM) system, the primary of its kind used by the United States Army and several allied states. It is manufactured by the U.S. defense contractor Raytheon and derives its name from the radar compon ...

missile *

Civil Defense Patrols The Civil Defense Patrols ( es, Patrullas de Autodefensa Civil, PAC) were local militias created by the government of Guatemala during the Guatemalan Civil War. They were created by decree of General Ríos Montt on 1 August 1982, though they began ...

(''Patrullas de Autodefensa Civil''), Guatemalan militia and paramilitary group

Geography

Pac, Albania Pac is a village located in the administrative territorial entity of Bytyç, belonging to the municipality of Tropojë, in northern Albania Albania ( ; sq, Shqipëri or ), or , also or . officially the Republic of Albania ( sq, Republi ...

, a village in Bytyç

Organizations

Aviation

* IATA code PAC Albrook "Marcos A. Gelabert" International Airport in Panama City, Panama *

Pacific Aerospace Corporation Pacific Aerospace Ltd (PAL) is an aircraft manufacturing company based in Hamilton, New Zealand. Along with its predecessors, it has produced around 600 utility, training and agricultural aircraft. History Pacific Aerospace was formed from ...

, New Zealand, manufacturer of aircraft: **

PAC 750XL The PAC P-750 XSTOL, (formerly known as the PAC 750XL) is a utility aircraft of conventional all-metal low-wing monoplane design, with fixed tricycle undercarriage. Combining the engine and wings of the PAC Cresco with a new large fuselage and ...

** PAC Cresco ** PAC CT/4 ** PAC Fletcher * Pakistan Aeronautical Complex, aerospace manufacturer * Polar Air Cargo airline, Purchase, New York, US

Business

* Panasonic Avionics Corporation, produces equipment and services for in-flight entertainment etc. * Peruvian Amazon Company, a former rubber company * Planned Amortization Class, a type of

collateralized mortgage obligation A collateralized mortgage obligation (CMO) is a type of complex debt security that repackages and directs the payments of principal and interest from a collateral pool to different types and maturities of securities, thereby meeting investor need ...

* Price Activity Chart, in stock technical analysis *

Programa de Aceleração do Crescimento The Programa de Aceleração do Crescimento (Growth Acceleration Program), better known as PAC, is a major infrastructure program of the Federal government of Brazil. The program was launched on January 28, 2007, by the Lula da Silva administrati ...

, an investment plan in Brazil

Education

* Panasonic Academic Challenge, a US national competition *

Postgraduate Applications Centre {{primary sources, date=May 2008 Postgraduate Applications Centre (PAC) is an organisation that processes applications for large number of postgraduate courses in the Republic of Ireland. Institutions which currently accept applications through P ...

, Ireland * Prince Alfred College, Australia *

Professionals' Academy of Commerce The Professionals' Academy of Commerce (PAC) ( ur, ) is an accountancy and commerce educational institution in Pakistan. The college was established in 1987 and has branches in five cities of Pakistan along with an online teaching portal. PAC als ...

, an accounting school in Pakistan * Peres Academic Center, a private college in Israel

Politics

* Anti-Corruption Party (''Partido Anti-Corrupción''), Honduras * Armed Proletarians for Communism (''Proletari Armati per il Comunismo''), a former Italian group * Pan Africanist Congress, South Africa * Partido Acción Ciudadana (disambiguation), several political parties in Latin America * Peoples' Aman Committee, a criminal gang and welfare group associated with the Pakistan Peoples Party * Political action committee, U.S. political fundraiser * Political Affairs Committee (British Guiana) * Polish American Congress * Public Accounts Committee (India) *

Public Accounts Committee (Malaysia) The Public Accounts Committee ( Malay: ''Jawatankuasa Kira-Kira Wang Negara'') (PAC) is a select committee of the House of Representatives in the Parliament of Malaysia. The PAC derives its powers from the Dewan Rakyat which chooses the committee ch ...

Public Accounts Committee (United Kingdom) The Committee of Public Accounts is a select committee of the British House of Commons. It is responsible for overseeing government expenditures, and to ensure they are effective and honest. The committee is seen as a crucial mechanism for e ...

Public Affairs Committee (Malawi) Public Affairs Committee (PAC) was founded in 1992 by the religious community and other pressure groups in Malaŵi to enter into a dialogue with Kamuzu Banda's Presidential Committee on Dialogue in the transition period from the one-party to the mul ...

Other organizations

Padiglione d'Arte Contemporanea The Padiglione d'Arte Contemporanea or PAC is a museum of contemporary art in Milan, Italy. It is on via Palestro, next to the Galleria d'Arte Moderna, and across from the Giardini Pubblici Indro Montanelli. History In 1947 the Municipality o ...

, a museum in Milan, Italy *

Pedorthic Association of Canada Pedorthic Association of Canada (PAC) is a national non-profit organization whose mandate is to develop and promote the study, practice and knowledge of Pedorthics in Canada. Currently the Pedorthic Association of Canada has almost 600 members nat ...

Provincial Armed Constabulary Provincial may refer to: Government & Administration * Provincial capitals, an administrative sub-national capital of a country * Provincial city (disambiguation) * Provincial minister (disambiguation) * Provincial Secretary, a position in Can ...

* Public Assistance Committee, former UK institution for assisting the poor

People

* Pac (wrestler) (born 1986), English professional wrestler *

Pac (family) The House of Pac or Pacowie ( pl, Pacowie, lt, Pacai, be, Па́цы) was one of the most influential noble families in the Grand Duchy of Lithuania during the era of the Polish–Lithuanian Commonwealth. Numerous high-ranking officials of ...

, of the Grand Duchy of Lithuania * Tupac Shakur or Pac, 2Pac (1971–1996), American rapper

Science and technology

Biology and medicine

* Physician assistant, certified, commonly abbreviated in the USA as PA-C * Plasma

aldosterone Aldosterone is the main mineralocorticoid steroid hormone produced by the zona glomerulosa of the adrenal cortex in the adrenal gland. It is essential for sodium conservation in the kidney, salivary glands, sweat glands, and colon. It plays a c ...

concentration *

Post-abortion care Post-abortion care (PAC) is treatment and counseling for post-abortion women. It includes curative care, such as treating abortion complications, as well as preventative care, such as providing birth control to prevent future unwanted pregnancies. P ...

* Pre-anesthesia checkup *

Premature atrial contraction Premature atrial contraction (PAC), also known as atrial premature complexes (APC) or atrial premature beats (APB), are a common cardiac dysrhythmia characterized by premature heartbeats originating in the atria. While the sinoatrial node typic ...

, a cardiac dysrhythmia *

Photoactivated adenylyl cyclase Photoactivated adenylyl cyclase (PAC) is a protein consisting of an adenylyl cyclase Protein domain, enzyme domain directly linked to a BLUF domain, BLUF (blue light receptor using FAD) type light sensor domain. When illuminated with blue light, th ...

, a light-sensitive protein * Proanthocyanidin, a type of flavanol *

Pulmonary artery catheterization A pulmonary artery catheter (PAC), also known as a Swan-Ganz catheter or right heart catheter, is a balloon-tipped catheter that is inserted into a pulmonary artery in a procedure known as pulmonary artery catheterization or right heart cathete ...

Computing and industrial

* Pacifica Coin, see List of TCP and UDP port numbers#Registered_ports * Pin Array Cartridge, an integrated circuit packaging type *

Probably approximately correct In computational learning theory, probably approximately correct (PAC) learning is a framework for mathematical analysis of machine learning. It was proposed in 1984 by Leslie Valiant.L. Valiant. A theory of the learnable.' Communications of the A ...

, in machine learning *

Presentation–abstraction–control Presentation–abstraction–control (PAC) is a software architectural pattern. It is an interaction-oriented software architecture, and is somewhat similar to model–view–controller (MVC) in that it separates an interactive system into three ...

, in software architecture * Programmable Automation Controller; see Computer appliance *

Proxy auto-config A proxy auto-config (PAC) file defines how web browsers and other user agents can automatically choose the appropriate proxy server (access method) for fetching a given URL. A PAC file contains a JavaScript function FindProxyForURL(url, host). T ...

, a web browser technology

Other science and technology

* Perturbed angular correlation * Polyaluminium chloride, less effective than aluminium chlorohydrate for water treatment *

Porting Authorisation Code Porting Authorization Code (PAC) is a unique identifier (normally 9 characters long and in the format "ABC123456") used by some mobile network operators to facilitate mobile number portability (MNP). This allows users to retain their mobile telepho ...

, to transfer mobile phone numbers * Pseudo algebraically closed field (PAC field), in mathematics * Powdered activated carbon, used in

electrochemical regeneration The electrochemical regeneration of activated carbon based adsorption, adsorbents involves the removal of molecules adsorbed onto the surface of the adsorbent with the use of an electric current in an electrochemical cell restoring the carbon's adso ...

* ''

Pure and Applied Chemistry ''Pure and Applied Chemistry'' is the official journal for the International Union of Pure and Applied Chemistry (IUPAC). It is published monthly by Walter de Gruyter Walter de Gruyter GmbH, known as De Gruyter (), is a German scholarly publ ...

'', the official monthly journal of IUPAC

Sports

Pocket Athletic Conference The Pocket Athletic Conference (PAC) is a high school athletic conference in Southwestern Indiana with its headquarters at Forest Park. Most of the conference's 13 members are mainly Class 2A and 3A public high schools currently located in Davi ...

, a USA (Indiana) high school athletic conference * Pennsylvania Athletic Conference, former name of the Colonial States Athletic Conference, an NCAA Division III collegiate athletic conference located in Pennsylvania, United States * Presidents' Athletic Conference, an NCAA Division III collegiate athletic conference located in the Appalachian region of the United States

Other uses

* Pan Asian Coalition, faction in the computer game ''

Battlefield 2142 ''Battlefield 2142'' is a 2006 first-person shooter video game developed by DICE and published by Electronic Arts. It is the fourth game in the ''Battlefield'' series. ''Battlefield 2142'' is set in 2142, depicting a war known as "The Cold Wa ...

'' *

Parent-Adult-Child Transactional Analysis (TA) is a psychoanalytic theory and method of therapy wherein social interactions (or “transactions”) are analyzed to determine the ego state of the communicator (whether parent-like, childlike, or adult-like) as a ba ...

, a model in transactional analysis * Perfect authentic cadence, in music * Performing arts center *

Providence Anime Conference Providence Anime Conference (PAC) was a three-day anime convention held in Providence, Rhode Island. It was the first 21-and-older anime convention. PAC was created by the New England Anime Society, a Massachusetts-based nonprofit organization ...

, 2008