TCA may refer to:

Chemistry and biochemistry

Toxin complex a ''Photorhabdus luminescens'' (previously called ''Xenorhabdus luminescens'') is a Gammaproteobacterium of the family Morganellaceae, and is a lethal pathogen of insects. It lives in the Gut (zoology), gut of an entomopathogenic nematode of the f ...

, an insecticidal toxin complex produced by ''Photorhabdus luminescens'' bacteria *

Tricarboxylic acid cycle The citric acid cycle—also known as the Krebs cycle, Szent–Györgyi–Krebs cycle, or TCA cycle (tricarboxylic acid cycle)—is a series of biochemical reactions that release the energy stored in nutrients through acetyl-CoA oxidation. The e ...

, an alternate name for the citric acid cycle pathway in cellular metabolism *

Trichloroacetic acid Trichloroacetic acid (TCA; TCAA; also known as trichloroethanoic acid) is an analogue of acetic acid in which the three hydrogen atoms of the methyl group have all been replaced by chlorine atoms. Salts and esters of trichloroacetic acid are cal ...

, chemical used to precipitate protein in serum * 2,4,6-Trichloroanisole, cause of cork taint in wine *

Tricyclic antidepressant Tricyclic antidepressants (TCAs) are a class of medications that are used primarily as antidepressants. TCAs were discovered in the early 1950s and were marketed later in the decade. They are named after their chemical structure, which contains ...

, a class of medications * TCA, a codon for the amino acid

serine Serine (symbol Ser or S) is an α-amino acid that is used in the biosynthesis of proteins. It contains an α- amino group (which is in the protonated − form under biological conditions), a carboxyl group (which is in the deprotonated − ...

Culture and media

Taiwanese Cultural Association The Taiwanese Cultural Association (TCA; ) was an important organization during the Japanese rule of Taiwan. It was founded by Chiang Wei-shui on 17 October 1921, in Daitōtei, a district in modern-day Taipei. It gathers Taiwanese intellectuals ...

* Tekeyan Armenian Cultural Association, a network of Armenian cultural organisations *

Television Critics Association The Television Critics Association (TCA) is a group of approximately 200 American and Canadian television critics, journalists and columnists who cover television programming for newspapers, magazines and web publications. The TCA accepts appli ...

* The Canadian Amateur, radio amateur magazine *

Tribune Content Agency Tribune Content Agency (TCA) is a syndication company owned by Tribune Publishing. TCA had previously been known as the Chicago Tribune Syndicate, the Chicago Tribune New York News Syndicate (CTNYNS), Tribune Company Syndicate, and Tribune Media ...

, a syndication company owned by Tribune Publishing * Triple Crown of Acting is 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 Transaction cost analysis (TCA), as used by institutional investors, is defined by the ''Financial Times'' as "the study of trade prices to determine whether the trades were arranged at favourable prices – low prices for purchases and high prices ...

Total cost of acquisition Total cost of acquisition (TCA) is a Management accounting, managerial accounting concept that includes all the costs associated with buying goods, services, or assets. Generally, it is the net price plus other costs needed to purchase the item an ...

True cost accounting True Cost Accounting (TCA) is an accounting approach that measures and values the hidden impacts of economic activities on the Natural environment, environment, society and health. TCA is also referred to as full cost accounting (FCA) or “multipl ...

Education

The Classical Academy (Colorado) The Classical Academy (TCA) is a kindergarten through twelfth grade public charter school located in northern Colorado Springs, Colorado, United States. It is chartered through Academy School District 20. The school is known for having an extensi ...

, 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 Trans-Canada Air Lines (also known as TCA in English, and Trans-Canada in French) was a Canadian airline that operated as the country's flag carrier, with corporate headquarters in Montreal, Quebec. Its first president was Gordon Roy McGregor. ...

, predecessor to Air Canada * Train Collectors Association * Transportes Carga Aérea, a defunct Brazilian airline

Politics

Taiwan Constitution Association The Taiwan Constitution Association (TCA; ) was a Taiwanese political party affiliated with the Pan-Green Coalition The Pan-Green coalition, Pan-Green force or Pan-Green groups is a nationalist political coalition in Taiwan (Republic of Chi ...

, a political party in Taiwan *

EU–UK Trade and Cooperation Agreement The EU–UK Trade and Cooperation Agreement (TCA) is a free trade agreement signed on 30 December 2020, between the European Union (EU), the European Atomic Energy Community (Euratom), and the United Kingdom (UK). It Provisional application (tr ...

, between the UK and the EU (2020) * The

Competition Authority (Ireland) The Competition Authority (TCA) was responsible for enforcing Irish and European competition law in the Republic of Ireland and promoting competition in the economy. In 2014 it was amalgamated with the National Consumer Agency to form the Compe ...

(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 The Turks and Caicos Islands (abbreviated TCI; and ) are a British Overseas Territory consisting of the larger Caicos Islands and smaller Turks Islands, two groups of tropical islands in the Lucayan Archipelago of the Atlantic Ocean and no ...

, country code * Tropical Cyclone Advisory, tropical forecast service for international aviation safety {{disambiguation