TCA

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TCA may refer to:

In economics:

• True cost accounting

In education:

• The Classical Academy,Colorado Springs, US

In finance:

• Transaction cost analysis

In chemistry:

• Trichloroacetic acid, chemical used to precipitate protein in serum
• Tricyclic antidepressant
• 2,4,6-Trichloroanisole, cause of cork taint in wine

In biochemistry:

• Citric acid cycle, or tricarboxylic acid cycle, a pathway in cellular metabolism

In associations:

• Television Critics Association
• The Consulting Association
• Total Community Action
• Trans-Canada Air Lines, predecessor to Air Canada
• Taiwanese Cultural Association
• Train Collectors Association
• Transportes Carga Aérea, a defunct Brazilian airline
• Trinity Christian Academy (Deltona, Florida), US
• Trinity Christian Academy (Jackson, Tennessee), US

Other uses:

• Terminal Control Area, a volume of controlled airspace
• The Competition Authority (Ireland)
• Topology change acknowledgement, a type of Bridge Protocol Data Unit used by the Spanning Tree Protocol (STP)
• Total cost of acquisition
• Toxin complex a, Tca, an insecticidal toxin complex
• The Canadian Amateur, radio amateur magazine
• Traumatic cardiac arrest, due to trauma
• Tribune Content Agency, a syndication company owned by Tribune Publishing