CT or ct may refer to:

In arts and media

* ''

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

'' (''Computer Technik''), a German computer magazine * ''

Carrick Times The ''Carrick Times'', (Formerly the ''Carrick Times and East Antrim Times'') established in 1891, is a local weekly newspaper based in Carrickfergus, Northern Ireland. The newspaper serves communities of Carrickfergus, Greenisland, Larne, White ...

'', Northern Irish newspaper * 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'' "eva ...

, an American evangelical Christian magazine

Businesses and organizations

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

, an Indonesian conglomerate *

CT Corporation CT Corporation, 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 part of Wolter ...

, 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 station ...

, 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), ...

, 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 *

Czech Television Czech Television ( ; abbreviation: ČT) is a public television broadcaster in the Czech Republic, broadcasting six channels. Established after breakup of Czechoslovakia in 1992, it is the successor to Czechoslovak Television founded in 1953. H ...

, the public television broadcaster in the Czech Republic *

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

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

Comunión Tradicionalista The Traditionalist Communion (, 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 succeeded by the 82-year-old ...

, a former Spanish political party *

CT (TV channel) Jack City (visually rendered in its logo all capital letters) was a Filipino cable and satellite television network based in Shaw Boulevard, Mandaluyong. Formerly known as Chase, it serves as the spin-off channel to Jack TV. Owned by Solar Ent ...

, a Filipino cable and satellite television network

Finance

Centime Centime (from ) is French language, French for "Cent (currency), 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 ...

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

Stotinki The ''lev'' (, 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 100 '' ...

(ст), the currency of Bulgaria

Places

CT postcode area The CT postcode area, also known as the Canterbury postcode area,Royal Mail, ''Address Management Guide'', (2004) is a group of 21 postcode districts in South East England, within 13 post towns. These cover much of east Kent, including Canterbur ...

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

Connecticut Connecticut ( ) is a U.S. state, state in the New England region of the Northeastern United States. It borders Rhode Island to the east, Massachusetts to the north, New York (state), New York to the west, and Long Island Sound to the south. ...

(United States postal abbreviation) *

Province of Catania The province of Catania (; ) was a province in the autonomous island region of Sicily, Italy. Its capital was the city of Catania. It had an area of and a total population of about 1,116,917 as of 31 December 2014. Historically known also as ...

(vehicle registration code), Sicily, Italy *

Central African Republic The Central African Republic (CAR) is a landlocked country in Central Africa. It is bordered by Chad to Central African Republic–Chad border, the north, Sudan to Central African Republic–Sudan border, the northeast, South Sudan to Central ...

(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 T ...

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

Cape Town Cape Town is the legislature, legislative capital city, capital of South Africa. It is the country's oldest city and the seat of the Parliament of South Africa. Cape Town is the country's List of municipalities in South Africa, 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 abbreviated; for examp ...

as used in the US

Science and technology

Biology and medicine

Haplogroup CT Haplogroup CT is a human Y chromosome haplogroup. CT has two basal branches, CF and DE. DE is divided into a predominantly Asia-distributed haplogroup D-CTS3946 and a predominantly Africa-distributed haplogroup E-M96, while CF is divided int ...

, Y-DNA haplogroup. *

CT scan A computed tomography scan (CT scan), formerly called computed axial tomography scan (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 ...

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-automa ...

(CT or CAT), a coagulation test * Cardiothoracic surgery, 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 ...

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

Cognitive therapy Cognitive therapy (CT) is a psychotherapeutic approach developed by American psychiatrist Aaron T. Beck, which aims to change unhelpful or inaccurate thought patterns. CT is one therapeutic approach within the larger group of cognitive behavio ...

, a type of psychotherapy *

Connective tissue Connective tissue is one of the four primary types of animal tissue, a group of cells that are similar in structure, along with epithelial tissue, muscle tissue, and nervous tissue. It develops mostly from the mesenchyme, derived from the mesod ...

, a type of biological tissue *

Chelation therapy Chelation therapy is a medical procedure that involves the administration of 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 specific medic ...

Chemotherapy Chemotherapy (often abbreviated chemo, sometimes CTX and CTx) is the type of cancer treatment that uses one or more anti-cancer drugs (list of chemotherapeutic agents, chemotherapeutic agents or alkylating agents) in a standard chemotherapy re ...

Cholera toxin Cholera toxin (also known as choleragen, CTX, CTx and CT) is a potent enterotoxin produced by the bacterium Vibrio cholerae which causes severe watery diarrhea and dehydration that define cholera infections. The toxin is a member of the heat-l ...

, a toxic protein secreted by ''Vibrio cholerae'' * Threshold Cycle (C_t), see cycle of quantification/qualification * COVID-19 test

Computing

Intel Ct Intel Ct is a programming model developed by Intel to ease the exploitation of its future multicore chips, as demonstrated by the Tera-Scale research program. It is based on the exploitation of SIMD to produce automatically parallelized programs. ...

, 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. When an internet user interacts with a website, a trusted third party is needed for assurance that the website is leg ...

, 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 cycle of quantification/qualification 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 hard ...

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

Carat (mass) The carat (ct) is a unit of mass equal to , which 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 Measures, and s ...

(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 "poi ...

, 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 compliant tower (CT) is a fixed rig structure normally used for the offshore production of oil or gas. The rig consists of narrow, flexible (''compliant'') towers and a piled foundation supporting a conventional deck for drilling and producti ...

, 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 mechanic ...

, in atmospheric science *

Current transformer A current transformer (CT) is a type of transformer that reduces or multiplies alternating current (AC), producing a current in its secondary which is proportional to the current in its primary. Current transformers, along with voltage or poten ...

, a kind of transformer used in the electrical power industry

Transportation

Lexus CT The is a hybrid electric automobile sold 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 pla ...

, 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 launch vehicles from NASA's Vehicle Assembly Building (VAB) along the Crawlerway to Launch Complex 39. The ...

, 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 U.S. Central Intelligence Agency (CIA), that supported the United States' covert operations throughout East and Southeast Asia. During the Cold War, missions consi ...

(IATA code) * Training cruiser, a U.S. Navy hull classification *

Cybertruck The Tesla Cybertruck is a battery-electric full-size pickup truck manufactured by Tesla, Inc. since 2023. It was first unveiled as a prototype in November 2019, featuring a distinctive angular design composed of flat, unpainted stainless ste ...

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 and used in English and French, in which the letters and are joined for the first ligature ...

* ''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 The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It ...

, 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 n ...

Conspiracy theory A conspiracy theory is an explanation for an event or situation that asserts the existence of a conspiracy (generally by powerful sinister groups, often political in motivation), when other explanations are more probable.Additional sources: * ...

or theorist *

Counter-terrorism Counterterrorism (alternatively spelled: counter-terrorism), also known as anti-terrorism, relates to the practices, military tactics, techniques, and strategies that governments, law enforcement, businesses, and intelligence agencies use to co ...

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 intell ...

, 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 the ...

, 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 that is not in the band