CT or ct may refer to:

In arts and media

* ''

c't ''c't'' – ' (''Magazine for Computer Technology'') is a German computer magazine, published by the Heinz Heise, Heinz Heise publishing house. file:Ct jubilaeum 30 turm.jpg, The 5.71 meter high tower from the 587 published c't editions up to t ...

'' (''Computer Technik''), a German computer magazine * Freelancer Agent Connecticut (C.T.), a fictional character in the web series ''Red vs. Blue'' *

Christianity Today ''Christianity Today'' is an evangelical Christian media magazine founded in 1956 by Billy Graham. It is published by Christianity Today International based in Carol Stream, Illinois. ''The Washington Post'' calls ''Christianity Today'' "evange ...

, an American evangelical Christian magazine

Businesses and organizations

CT Corp CT Corp (formerly known as Para Group) is one of Indonesia's largest diversified group of companies. The group was founded by Chairul Tanjung in 1987. CT Corp operates consumer-centric businesses nationwide across four key divisions: financial s ...

, an Indonesian conglomerate *

CT Corporation CT, or the Corporation Trust Company, is a wholly owned subsidiary of Wolters Kluwer, a multi-national information services company based in the Netherlands with operations in more than 35 countries. CT Corporation is the largest registered age ...

, an umbrella brand for two businesses: CT Corporation and CT Liena * C/T Group, formerly Crosby Textor Group, social research and political polling company *

Canadian Tire Canadian Tire Corporation, Limited is a Canadian retail company which operates in the automotive, hardware, sports, leisure and housewares sectors. Its Canadian operations include: Canadian Tire (including Canadian Tire Petroleum gas stations a ...

, a Canadian company engaged in retailing, financial services and petroleum *

Calgary Transit Calgary Transit is the public transit agency which is owned and operated by the city of Calgary, Alberta, Canada. In 2019, an estimated 106.5 million passengers boarded approximately 1,155 Calgary Transit vehicles. It operates light metro (LRT), u ...

, the public transit service in Calgary, Alberta, Canada *

Central Trains Central Trains was a train operating company in the United Kingdom owned by National Express that operated a variety of local and inter-regional trains from 2 March 1997 until 11 November 2007. Overview Created out of the Central division of ...

(National Rail abbreviation), a former train operating company in the United Kingdom *

Česká televize Czech Television ( cs, Česká televize, italics=no ; abbreviation: ČT) is a public television broadcaster in the Czech Republic, broadcasting seven channels. Established after the Velvet Revolution in 1992, it is the successor to Czechoslov ...

, the public television broadcaster in the Czech Republic *

Community Transit Community Transit (CT) is the public transit authority of Snohomish County, Washington, United States, excluding the city of Everett, in the Seattle metropolitan area. It operates local bus, paratransit and vanpool service within Snohomish Cou ...

, the public transit service in Snohomish County, Washington, U.S. *

Comunión Tradicionalista The Traditionalist Communion ( es, Comunión Tradicionalista, CT) was one of the names adopted by the Carlist movement as a political force since 1869. History In October 1931, Carlist claimant to the Spanish throne Duke Jaime died. He was s ...

, a former Spanish political party *

CT (TV channel) CT (stood for City Television) was a 24-hour Filipino cable and satellite television network based in Mandaluyong. It was launched on March 22, 2015. Owned by Solar Entertainment Corporation, replacing Jack City, a defunct spin-off of sister chan ...

, a Filipino cable and satellite television network

Finance

Centime Centime (from la, centesimus) is French for " cent", and is used in English as the name of the fraction currency in several Francophone countries (including Switzerland, Algeria, Belgium, Morocco and France). In France, the usage of ''centim ...

(ct), the French for "cent", used in English in several Francophone countries *

Stotinki The lev ( bg, лев, plural: / , ; ISO 4217 code: BGN; numeric code: 975) is the currency of Bulgaria. In old Bulgarian the word "lev" meant "lion", the word 'lion' in the modern language is ''lаv'' (; in Bulgarian: ). The lev is divided in 1 ...

(ст), the currency of Bulgaria

Places

* CT postcode area, for Canterbury and surrounding areas in south-eastern England *

Connecticut Connecticut () is the southernmost state in the New England region of the Northeastern United States. It is bordered by Rhode Island to the east, Massachusetts to the north, New York to the west, and Long Island Sound to the south. Its cap ...

(United States postal abbreviation) *

Province of Catania The Province of Catania ( it, Provincia di Catania; scn, Pruvincia di Catania) was a province in the autonomous island region of Sicily in southern Italy. Its capital was the city of Catania. It had an area of and a total population of about 1, ...

(vehicle registration code), Sicily, Italy *

Central African Republic The Central African Republic (CAR; ; , RCA; , or , ) is a landlocked country in Central Africa. It is bordered by Chad to the north, Sudan to the northeast, South Sudan to the southeast, the DR Congo to the south, the Republic of th ...

(FIPS Pub 10-4 code and obsolete NATO diagram) *

Canton and Enderbury Islands The Canton and Enderbury Islands consist of the coral atolls of Canton Island (also Kanton) and Enderbury in the northeastern part of the Phoenix Islands, about 1,850 miles (3,000 km) south of Hawaii in the central Pacific Ocean. History Th ...

(obsolete ISO 3166 country code), part of the Phoenix Islands in the Pacific Ocean *

Cape Town Cape Town ( af, Kaapstad; , xh, iKapa) is one of South Africa's three capital cities, serving as the seat of the Parliament of South Africa. It is the legislative capital of the country, the oldest city in the country, and the second largest ...

(capital city of the Western Cape, South Africa) * Ct, for "Court"; a

street suffix A street suffix is the part of a street or road name that describes what type of road it is. Examples include "street", "avenue", "lane", "highway", and "drive". As they are commonly repeated between roads, they are often Abbreviation, abbreviat ...

as used in the US

Science and technology

Biology and medicine

Haplogroup CT Haplogroup CT is a human Y chromosome haplogroup, defining one of the major paternal lineages of humanity. Men who carry the CT clade have Y chromosomes with the SNP mutation M168, along with P9.1 and M294. These mutations are present in all mod ...

, Y-DNA haplogroup. *

CT scan A computed tomography scan (CT scan; formerly called computed axial tomography scan or CAT scan) is a medical imaging technique used to obtain detailed internal images of the body. The personnel that perform CT scans are called radiographers ...

or X-ray computed tomography, a medical imaging method *

Calcitonin Calcitonin is a 32 amino acid peptide hormone secreted by parafollicular cells (also known as C cells) of the thyroid (or endostyle) in humans and other chordates. in the ultimopharyngeal body. It acts to reduce blood calcium (Ca2+), opposing the ...

(symbol CT), a hormone produced in the thyroid gland *

Calibrated automated thrombogram The calibrated automated thrombogram (CAT or CT) is a thrombin generation assay (TGA) and global coagulation assay (GCA) which can be used as a coagulation test to assess thrombotic risk. It is the most widely used TGA. The CAT is a semi-automated ...

(CT or CAT), a coagulation test *

Cardiothoracic surgery Cardiothoracic surgery is the field of medicine involved in surgical treatment of organs inside the thoracic cavity — generally treatment of conditions of the heart ( heart disease), lungs (lung disease), and other pleural or mediastinal st ...

, the field of medicine specializing in chest surgery *

Chemotype A chemotype (sometimes chemovar) is a chemically distinct entity in a plant or microorganism, with differences in the composition of the secondary metabolites. Minor genetic and epigenetic changes with little or no effect on morphology or anatomy m ...

(ct.), a chemically distinct entity in a plant or microorganism *

Cognitive therapy Cognitive therapy (CT) is a type of psychotherapy developed by American psychiatrist Aaron T. Beck. CT is one therapeutic approach within the larger group of cognitive behavioral therapies (CBT) and was first expounded by Beck in the 1960s. Cogn ...

, a type of psychotherapy *

Connective tissue Connective tissue is one of the four primary types of animal tissue, along with epithelial tissue, muscle tissue, and nervous tissue. It develops from the mesenchyme derived from the mesoderm the middle embryonic germ layer. Connective tiss ...

, a type of biological tissue *

Chelation therapy Chelation therapy is a medical procedure that involves the administration of Chelation, chelating agents to remove heavy metals from the body. Chelation therapy has a long history of use in clinical toxicology and remains in use for some very sp ...

Chemotherapy Chemotherapy (often abbreviated to chemo and sometimes CTX or CTx) is a type of cancer treatment that uses one or more anti-cancer drugs (chemotherapeutic agents or alkylating agents) as part of a standardized chemotherapy regimen. Chemotherap ...

Cholera toxin Cholera toxin (also known as choleragen and sometimes abbreviated to CTX, Ctx or CT) is AB5 multimeric protein complex secreted by the bacterium ''Vibrio cholerae''. CTX is responsible for the massive, watery diarrhea characteristic of cholera ...

, a toxic protein secreted by ''Vibrio cholerae'' * Threshold Cycle (C_t), see

cycle of quantification/qualification Cycle of quantification/qualification (Cq) is a parameter used in real-time polymerase chain reaction techniques, indicating the cycle number where a PCR amplification curve meets a predefined mathematical criterion. A Cq may be used for quantifica ...

COVID-19 test COVID-19 testing involves analyzing samples to assess the current or past presence of SARS-CoV-2. The two main types of tests detect either the presence of the virus or antibodies produced in response to infection. Molecular tests for viral p ...

Computing

Intel Ct Intel Ct is a Parallel programming model, programming model developed by Intel to ease the exploitation of its future Multi-core processor, multicore chips, as demonstrated by the Intel Tera-Scale, Tera-Scale research program. It is based on the ex ...

, a SIMD multithreading programming model developed by Intel *

Certificate Transparency Certificate Transparency (CT) is an Internet security standard for monitoring and auditing the issuance of digital certificates. The standard creates a system of public logs that seek to eventually record all certificates issued by publicly trus ...

, in network security

Other uses in science and technology

CT Value CT Values are an important part of calculating disinfectant dosage for the chlorination of drinking water. A CT value is the product of the concentration of a disinfectant (e.g. free chlorine) and the contact time with the water being disinfected. ...

, in drinking water disinfection * Threshold cycle (C_t), a measure in the

of a real-time polymerase chain reaction *

Carat (purity) The fineness of a precious metal object (coin, bar, jewelry, etc.) represents the weight of ''fine metal'' therein, in proportion to the total weight which includes alloying base metals and any impurities. Alloy metals are added to increase hardn ...

(ct), a measure of the purity of gold and platinum alloys *

Carat (mass) The carat (ct) is a unit of mass equal to or 0.00643 troy oz, and is used for measuring gemstones and pearls. The current definition, sometimes known as the metric carat, was adopted in 1907 at the Fourth General Conference on Weights and Meas ...

(ct), a unit of mass used for measuring gems and pearls *

Continuous-time signal In mathematical dynamics, discrete time and continuous time are two alternative frameworks within which variables that evolve over time are modeled. Discrete time Discrete time views values of variables as occurring at distinct, separate "po ...

, a varying quantity (a signal) whose domain is a continuum *

Center tap In electronics, a center tap (CT) is a contact made to a point halfway along a winding of a transformer or inductor, or along the element of a resistor or a potentiometer. Taps are sometimes used on inductors for the coupling of signals, and ...

, a wire that is connected halfway along one of the windings of a transformer, inductor or a resistor * Compliant Tower, a deepwater offshore oil platform *

Convective temperature The convective temperature (CT or Tc) is the approximate temperature that air near the surface must reach for cloud formation without mechanical lift. In such case, cloud base begins at the convective condensation level (CCL), whilst with mechanica ...

, in atmospheric science *

Current transformer A current transformer (CT) is a type of transformer that is used to reduce or multiply an alternating current (AC). It produces a current in its secondary which is proportional to the current in its primary. Current transformers, along with volt ...

, a kind of transformer used in the electrical power industry

Transportation

Lexus CT The is a hybrid electric automobile produced by Lexus, a luxury division of Toyota, as a premium compact hatchback. The CT, consisting of a single model called the CT 200h is a luxury hybrid based on the Toyota Prius drivetrain and Toyota MC pl ...

, an automobile *

Honda CT series The Honda CT series was a group of Honda trail bike motorcycles made since 1964. The CT designation is a slight exception in Honda nomenclature in that "CT" does not indicate a series of mechanically related bikes, but rather a group of different b ...

, a series of Honda bikes *

Crawler-transporter The crawler-transporters, formally known as the Missile Crawler Transporter Facilities, are a pair of tracked vehicles used to transport spacecraft from NASA's Vehicle Assembly Building (VAB) along the Crawlerway to Launch Complex 39. They were ...

, a tracked vehicle used to transport the Space Shuttle from Vehicle Assembly Building to Launch Complex 39 *

Civil Air Transport Civil Air Transport (CAT) was a Nationalist Chinese airline, later owned by the US Central Intelligence Agency (CIA), that supported United States covert operations throughout East and Southeast Asia. During the Cold War, missions consisted in ...

(IATA code) *

Training cruiser A cruiser is a type of warship. Modern cruisers are generally the largest ships in a fleet after aircraft carriers and amphibious assault ships, and can usually perform several roles. The term "cruiser", which has been in use for several hu ...

, a U.S. Navy hull classification

Other uses

* Ct, a

typographic ligature In writing and typography, a ligature occurs where two or more graphemes or letters are joined to form a single glyph. Examples are the characters æ and œ used in English and French, in which the letters 'a' and 'e' are joined for the first li ...

* ''c. t.'' (cum tempore, Latin for "with time"), indicates that a lecture will begin a quarter-hour after the stated time; see Academic quarter *

Central Time Zone The North American Central Time Zone (CT) is a time zone in parts of Canada, the United States, Mexico, Central America, some Caribbean Islands, and part of the Eastern Pacific Ocean. Central Standard Time (CST) is six hours behind Coordinate ...

, a time zone in Canada, the United States, and Mexico *

Coffin Texts The Coffin Texts are a collection of ancient Egyptian funerary spells written on coffins beginning in the First Intermediate Period. They are partially derived from the earlier Pyramid Texts, reserved for royal use only, but contain substantial ...

Conspiracy theory A conspiracy theory is an explanation for an event or situation that invokes a conspiracy by sinister and powerful groups, often political in motivation, when other explanations are more probable.Additional sources: * * * * The term has a nega ...

or theorist *

Counter-terrorism Counterterrorism (also spelled counter-terrorism), also known as anti-terrorism, incorporates the practices, military tactics, techniques, and strategies that governments, law enforcement, business, and intelligence agencies use to combat or el ...

Cryptologic technician Cryptologic Technician (CT) is a United States Navy enlisted rating or job specialty. The CT community performs a wide range of tasks in support of the national intelligence-gathering effort, with an emphasis on cryptology and signal intelligenc ...

, a United States Navy enlisted rating or job specialty *

Chinese Taipei "Chinese Taipei" is the term used in various international organizations and tournaments for groups or delegations representing the Republic of China (ROC), a country commonly known as Taiwan. Due to the One-China principle stipulated by th ...

, the name used by Taiwan in some international organizations due to political pressure from the People's Republic of China * ct followed by a number means the number of items contained in a cardboard (e.g. zucchini 3 ct) * Corps Turd, etymologically "Cadet in Training", member of the

Texas A&M Corps of Cadets The Texas A&M University Corps of Cadets (often The Corps of Cadets, or simply the Corps) is a student military organization at Texas A&M University. Established with the university in 1876, it is the oldest student organization on campus. Student ...

that is not in the band