Education

• Pasig Christian Academy
  Pasig Christian Academy
  Pasig Christian Academy is a private sectarian elementary and high school located at Caniogan, Pasig City, Philippines. It was founded in 1988 under the name of Sunbeam Playschool. It was founded by the Masanga family, led by Dr. Isagani C. Masanga. Its high school building is located along...
  
  , a school located in Caniogan, Pasig City, Philippines
• Peoples Christian Academy
  Peoples Christian Academy
  The Peoples Christian Academy is an independent, private, Christian elementary and secondary school in Toronto, Canada. The name "Peoples Christian Academy" was adopted in 1995 but was not registered by PMI as a trademark until December 3, 2003.-History:In 1971, The Peoples Church, Toronto,...
  
  , a private Christian school in Toronto, Ontario, Canada
• Pensacola Christian Academy
  Pensacola Christian Academy
  Pensacola Christian Academy is a private elementary through high school institution located in Pensacola, Florida, USA.-History:The school was founded as Pensacola Christian School in 1954 by Arlin Horton and his wife Beka...
  
  , a private Christian school in Pensacola, Florida
• Pittsburgh Classical Academy Middle School
  Pittsburgh Classical Academy Middle School
  Pittsburgh Classical Academy has an academic program that focuses on classical history. The PCA is located in the Greenway building with the Pittsburgh Gifted Center....
  
  , has an academic program that focuses on classical history
• Prestonwood Christian Academy
  Prestonwood Christian Academy
  Prestonwood Christian Academy is a private PreK-12 school in Plano, Texas. It has over 1,400 students.Around 2011 Prestonwood Christian received a 44% increase in inquiries and a 25% increase in applications submitted to the school. Most of the students in the school live within the attendance...
  
  , a private Christian PreK-12 school in Plano, Texas
• Plano Christian Academy
  Plano Christian Academy
  Plano Christian Academy is an Evangelical, non-denominational, private, Classical Christian school supporting grades K-12. Located in Plano, Texas, PCA utilizes the Trivium, a three-stage integrative and cyclical approach to learning that introduces students to many of the influential works that...
  
  , an Evangelical, non-denominational, private, Classical Christian school supporting grades K-12
• Providence Christian Academy (disambiguation), for multiple schools

Trade

• Peanut Corporation of America
  Peanut Corporation of America
  Peanut Corporation of America was a peanut-processing business founded in 1977 and headquartered in Lynchburg, Virginia. The company was forced out of business after being found to be the source of a massive salmonella outbreak in the United States during 2008 and 2009.PCA operated processing...
  
  , a peanut-processor forced out of business after being found to be the source of a massive salmonella outbreak in the United States

Television and film

• People's Choice Awards
  People's Choice Awards
  The People's Choice Awards is an American awards show recognizing the people and the work of popular culture. The show has been held annually since 1975 and is voted on by the general public. The People's Choice Awards air on CBS and are produced by Procter & Gamble and Survivor magnate Mark Burnett...
  
  , an awards show recognizing the people and the work of popular culture
• Production Code Administration
  Production Code Administration
  The Production Code Administration was established by the Motion Picture Association of America in 1934. The PCA required all filmmakers to submit their films for approval before release.-See also:* Pre-Code* Joseph Breen* Will H. Hays...
  
  , a division of the Motion Picture Association of America

Games

• Professional Chess Association
  Professional Chess Association
  The Professional Chess Association , which existed between 1993 and 1996, was a rival organisation to FIDE, the international chess organization...
  
  , from 1993 and 1996, a rival organisation to FIDE, the international chess organization
• PokerStars Caribbean Poker Adventure, European Poker Tour event

Sports

• Positive Coaching Alliance
  Positive Coaching Alliance
  Positive Coaching Alliance is a national non-profit organization that provides training workshops to coaches, parents, and administrators of schools and youth sports organizations in the United States. Founded in 1998, PCA has conducted more than 5,000 workshops for more than 1,100 schools or...
  
  , provides training workshops to schools and youth sports organizations (USA)
• Professional Cricketers' Association
  Professional Cricketers' Association
  The Professional Cricketers' Association is the representative body of past and present first-class cricketers in England and Wales, founded in 1967...
  
  , representative body of past and present first class cricketers in England and Wales
• Punjab Cricket Association Stadium
  Punjab Cricket Association Stadium
  The Punjab Cricket Association Stadium is located at Mohali, just outside the city of Chandigarh. It is popularly referred to as the Mohali Stadium. The stadium is home to the Punjab team. Punjab's second international cricket stadium has been approved by BCCI in Bathinda, Punjab. The...
  
  , Mohali, India

Political

• Parti Communiste Algérien (Algerian Communist Party
  Algerian Communist Party
  The Algerian Communist Party was a communist party in Algeria. The PCA emerged in 1920 as an extension the French Communist Party and eventually became a separate entity in 1936 ....
  
  )
• Partido Comunista de Andalucía (Communist Party of Andalusia
  Communist Party of Andalusia
  Communist Party of Andalusia is the federation of the Communist Party of Spain in Andalusia.-History:...
  
  )
• Partido Comunista de Aragón (Communist Party of Aragon
  Communist Party of Aragon
  Communist Party of Aragon , is the federation of the Communist Party of Spain in Aragon....
  
  )
• Partido Comunista de la Argentina (Communist Party of Argentina
  Communist Party of Argentina
  The Communist Party of Argentina is a communist party from Argentina. It was founded in 1918.At the 2005 legislative elections, the Party joined the Encuentro Amplio with other left-wing parties in Buenos Aires and Buenos Aires Province...
  
  )

Other

• Popular Culture Association, see The Journal of Popular Culture
• POSC Caesar
  POSC Caesar
  POSC Caesar Association is an international, open, not-for-profit, member organization committed to promote the development of open specifications to be used as standards for enabling the interoperability of data, software and related matters....
  
   Association, a standardization organization, custodian of ISO 15926
• Porsche Club of America
  Porsche Club of America
  The Porsche Club of America is an organization of Porsche enthusiasts in the United States and Canada. It is organized into 139 regions, which are grouped into 13 zones...
  
  , an organization of Porsche enthusiasts in the United States and Canada
• Police Complaints Authority (disambiguation)
• Predator Conservation Alliance
  Predator Conservation Alliance
  Predator Conservation Alliance , founded in 1991, is a conservation group based in Bozeman, Montana, U.S.A...
  
   (USA), founded in 1991, is a conservation group based in Bozeman, Montana, U.S.A

Religion

• Presbyterian Church in America
  Presbyterian Church in America
  The Presbyterian Church in America is an evangelical Protestant Christian denomination, the second largest Presbyterian church body in the United States after the Presbyterian Church . The PCA professes a strong commitment to evangelism, missionary work, and Christian education...
  
  , a Protestant Christian denomination, the second largest Presbyterian body in the United States after the Presbyterian Church (U.S.A.)
• Presbyterian Church of Australia
  Presbyterian Church of Australia
  The Presbyterian Church of Australia is the largest Presbyterian denomination in Australia. .-Beginnings:...
  
  , the largest Presbyterian denomination in Australia

Science and technology

• para-Chloroamphetamine
  Para-Chloroamphetamine
  para-Chloroamphetamine , also known as 4-chloroamphetamine , is an amphetamine derivative and monoamine releaser similar to MDMA, but with substantially higher neurotoxicity, thought to be due to the unrestrained release of both serotonin and dopamine as with MDMA itself...
  
   or 4-Chloroamphetamine
• Partial Coherence Analysis, see Modal analysis
  Modal analysis
  Modal analysis is the study of the dynamic properties of structures under vibrational excitation.Modal analysis is the field of measuring and analysing the dynamic response of structures and or fluids when excited by an input...
  
  
• Principal component analysis, a statistical procedure
• Propulsion Controlled Aircraft, a type of aircraft flight control system
• Printed Circuit Assembly or Printed circuit board
  Printed circuit board
  A printed circuit board, or PCB, is used to mechanically support and electrically connect electronic components using conductive pathways, tracks or signal traces etched from copper sheets laminated onto a non-conductive substrate. It is also referred to as printed wiring board or etched wiring...
  
  
• Protocatechuic acid
  Protocatechuic acid
  Protocatechuic acid is a dihydroxybenzoic acid, a type of phenolic acid. It has mixed effects on normal and cancer cells in in vitro and in vivo studies.-Biological effects:...
  
  , a polyphenol antioxidant

Medicine, biology, and psychotherapy

• Person Centered Approach, also known as Rogerian psychotherapy, see Carl Rogers
  Carl Rogers
  Carl Ransom Rogers was an influential American psychologist and among the founders of the humanistic approach to psychology...
  
  
• Personal Care Assistant
  Personal Care Assistant
  A Personal Care Assistant - variously known under alternate names such as caregiver, personal care attendant, patient care assistant, personal support worker and home care aide - is a paid, employed person who helps persons who are disabled or chronically ill with their activities of daily living ...
  
  /Attendant or Patient Care Assistant, a caregiver who assists a person with day-to-day tasks
• Patient-controlled analgesia
  Patient-controlled analgesia
  Patient-controlled analgesia is any method of allowing a person in pain to administer their own pain relief. The infusion is programmable by the prescriber...
  
  , any method of allowing a person in pain to administer their own pain relief
• Plate count agar
  Plate count agar
  Plate count agar is a microbiological growth medium commonly used to assess or to monitor "total" or viable bacterial growth of a sample...
  
   (microbiology), a microbiological growth medium
• Potato carrot agar, a microbiological growth medium similar to potato dextrose agar
  Potato dextrose agar
  Potato dextrose agar and potato dextrose broth are common microbiological growth media made from potato infusion, and dextrose...
  
  
• Posterior cortical atrophy
  Posterior cortical atrophy
  Posterior cortical atrophy , also called Benson's syndrome, is most usually considered to be an atypical variant of Alzheimer's disease. The disease causes atrophy of the back part of the cerebral cortex, resulting in the progressive disruption of complex visual processing. PCA was first described...
  
  , the visual variant of Alzheimer’s disease
• Posterior cerebral artery
  Posterior cerebral artery
  -External links: - Posterior Cerebral Artery Stroke* at strokecenter.org* at State University of New York Upstate Medical University* at psyweb.com* at neuropat.dote.hu...
  
   (neuroscience), a blood vessel to the posterior aspect of the brain (occipital lobe)
• Procainamide
  Procainamide
  Procainamide INN is a pharmaceutical antiarrhythmic agent used for the medical treatment of cardiac arrhythmias, classified by the Vaughan Williams classification system as class Ia.-History:...
  
  , a pharmaceutical antiarrhythmic agent
• Prostate cancer
  Prostate cancer
  Prostate cancer is a form of cancer that develops in the prostate, a gland in the male reproductive system. Most prostate cancers are slow growing; however, there are cases of aggressive prostate cancers. The cancer cells may metastasize from the prostate to other parts of the body, particularly...
  
  , written as PCa
• Protein-fragment Complementation Assay
  Protein-fragment Complementation Assay
  Protein-fragment complementation assay, or PCA, is a method for the identification of protein–protein interactions in biological systems. It is used in the field of proteomics...
  
  , a method for the identification of protein–protein interactions in biological systems
• Polymerase cycling assembly
  Polymerase cycling assembly
  Polymerase cycling assembly is a method for the assembly of large DNA oligonucleotides from shorter fragments...
  
  , a method for the assembly of large DNA oligonucleotides from shorter fragments.

Computers

• Panda Cloud Antivirus
  Panda Cloud Antivirus
  Panda Cloud Antivirus is antivirus software by Panda Security; a free and a paid version are available. It is cloud-based in the sense that files are scanned on a remote server without using processing power of the user's machine. The cloud technology is based on Panda's Collective Intelligence...
  
  , free cloud-based version of Panda's security software
• pcAnywhere
  PcAnywhere
  pcAnywhere is a suite of computer programs by Symantec which allows a user of the pcAnywhere remote program on a computer to connect to a personal computer running the pcAnywhere host if both are connected to the internet or the same LAN and the password is known...
  
  , remote control software by Symantec
• Program Compatibility Assistant, a feature in Windows Vista
  Windows Vista
  Windows Vista is an operating system released in several variations developed by Microsoft for use on personal computers, including home and business desktops, laptops, tablet PCs, and media center PCs...
  
   and Windows 7 that allows programs to run that were designed for earlier versions of Windows
• Prioritized Contention Access, a mechanism for mediating access to a common channel, see Access contention
• Physical configuration audit
  Physical Configuration Audit
  A Physical Configuration Audit is the formal examination of the "as-built" configuration of aconfiguration item against its technical documentation to establish or verify the configuration item's product baseline....
  
  , in configuration management
• Polymorphous Computer Architectures, see Josep Torrellas
  Josep Torrellas
  Josep Torrellas is Professor and Willett Faculty Scholar in the Department of Computer Science and a research faculty for the Universal Parallel Computing Research Center at the University of Illinois at Urbana-Champaign...
  
  

Television, film, and music

• Pacific Coast Academy
  Zoey 101
  Zoey 101 is an American television series that ran from January 9, 2005 to May 2, 2008 starring Jamie Lynn Spears as teenager Zoey Brooks, produced for Nickelodeon and syndicated worldwide. The show was initially filmed at Pepperdine University in Malibu, California, then at stages in Valencia,...
  
  , the fictional school in which the Nickelodeon television series Zoey 101 is set
• Police Camera Action!
  Police Camera Action!
  Police, Camera, Action! is a police video programme made by Optomen Television for ITV and broadcast on the ITV Network and ITV4. The program was originally commissioned through Carlton Television....
  
  , a police video programme made by Optomen Television for ITV and broadcast on the ITV Network and ITV4

Business

• Put and Call Option Agreement, see puts and calls
• Protected concerted activity
  Protected concerted activity
  Protected Concerted Activity is a legal term used in labor policy to define employee protection against employer retaliation. It is a legal principle under the subject of the freedom of association. It defines the activities workers may partake in without fear of employer retaliation...
  
  , employees acting together to protest terms and conditions of employment (USA)
• Prompt Corrective Action
  Prompt Corrective Action
  Prompt Corrective Action is a US federal law mandating progressive penalties against banks that exhibit progressively deteriorating capital ratios...
  
  , a law which requires penalties for banks which don't meet their capital requirements

Law and courts

• Permanent Court of Arbitration
  Permanent Court of Arbitration
  The Permanent Court of Arbitration , is an international organization based in The Hague in the Netherlands.-History:The court was established in 1899 as one of the acts of the first Hague Peace Conference, which makes it the oldest institution for international dispute resolution.The creation of...
  
  , based in The Hague and the oldest international institution for dispute resolution

Military and government

• Permanent Change of Assignment, describes the reassignment of active duty military personnel to a new unit within the same post
• Personal Capability Assessment, see Employment and Support Allowance
  Employment and Support Allowance
  Employment and Support Allowance is a UK Government State Benefit which replaced new claims for Incapacity Benefit and Income Support on the basis of incapacity for work for most claimants from 27 October 2008. Initially, claimants already receiving Incapacity Benefit continued to receive it as...
  
   (UK)
• Partnership and Cooperation Agreement (EU)

Transportation

• Pre-Conditioned Air, airport facility for ground-based aircraft climatisation with APU (Auxiliary power unit
  Auxiliary power unit
  An auxiliary power unit is a device on a vehicle that provides energy for functions other than propulsion. They are commonly found on large aircraft, as well as some large land vehicles.-Function:...
  
  ) turned off

Other uses

• Personal carbon allowance, a ration of allowed carbon emissions for individuals, designed to help address human-caused global warming