TCA

TCAmay refer to:

Chemistry and biochemistry

• Toxin complex a,an insecticidal toxin complex produced byPhotorhabdus luminescensbacteria
• Tricarboxylic acid cycle,an alternate name for the citric acid cycle pathway in cellular metabolism
• Trichloroacetic acid,chemical used to precipitate protein in serum
• 2,4,6-Trichloroanisole,cause of cork taint in wine
• Tricyclic antidepressant,a class of medications
• TCA, a codon for the amino acidserine

Culture and media

• Taiwanese Cultural Association
• Tekeyan Armenian Cultural Association,a network of Armenian cultural organisations
• Television Critics Association
• The Canadian Amateur,radio amateur magazine
• Tribune Content Agency,a syndication company owned by Tribune Publishing
• Triple Crown of Actingis a term used in the American entertainment industry to describe actors who have won a competitive Academy Award, Emmy Award, and Tony Award in the acting categories
• Twentieth Century Animation,the animation division of 20th Century Studios

Economics and finance

• Transaction cost analysis
• Total cost of acquisition
• True cost accounting

Education

• The Classical Academy (Colorado),Colorado Springs, US
• Trinity Christian Academy (Deltona, Florida),US
• Trinity Christian Academy (Jackson, Tennessee),US

Organizations

• Taipei Computer Association
• The Consulting Association
• Total Community Action
• Trans-Canada Air Lines,predecessor to Air Canada
• Train Collectors Association
• Transportes Carga Aérea,a defunct Brazilian airline

Politics

• Taiwan Constitution Association,a political party in Taiwan
• EU–UK Trade and Cooperation Agreement,between the UK and the EU (2020)
• TheCompetition Authority (Ireland)(2002–2014)

Other uses

• Terminal control area,a volume of controlled airspace
• Topology change acknowledgement,a message in the 802.1D Spanning Tree Protocol (STP)
• Transportation Corridor Agencies,a toll road authority in Orange County, California
• Traumatic cardiac arrest,due to trauma
• Tennant Creek Airport,IATA airport code "TCA"
• Turks and Caicos Islands,country code