Ic

IC, Ic, ic, or i.c. may stand for:

Science and technology

Astronomy

Index Catalogue, a nebula and other object catalogue used in astronomy
Type Ic supernova, a subtype of Type I supernova

Biology and medicine

Inferior colliculus, a part of the midbrain
Informed consent, in clinical trials, a form that has to be signed by the patient before entering a study
Intensive care medicine
Intermittent catheterisation, a method of relieving the bladder
Interstitial cystitis, a disease
Inhibitory Concentration, as in half maximal inhibitory concentration (IC₅₀)
Inspiratory capacity, a measure of lung volumes
Irreducible complexity, a creationist argument

Computing

Index of coincidence, in cryptography
Integrated circuit, a set of electronic circuits on a semiconductor chip
Interactive C, a programming language for robotic controllers
Interconnection, physical linking of a telecommunication carrier's network

Economics

Indifference curve, in economics
Information coefficient, in economics

Physics and chemistry

-ic, a suffix describing oxidation state in the IUPAC nomenclature of inorganic chemistry
I_C, or collector current, in bipolar junction transistors
Ice I_c, a metastable cubic crystalline variant of ice
Ion chromatography
Ionization chamber, a type of radiation detector

Vehicles

IC Bus, a bus manufacturer
Impuls IC, a German hang glider design
International Canoe, a powerful and fast single-handed sailing canoe

Other technologies

ic, a unit of length in the CSS standard equal to the advance measure of the 水 ideograph
Interchangeable core, a type of lock cylinder
Isolation condenser, a passive cooling system for boiling water nuclear reactors

Language

-ić or -ič, a family name suffix in South Slavic languages
i.c., an abbreviation for the Latin phrase in casu, meaning 'in this case'
ic, an Old English pronoun
A Christogram, a series of letters that form the abbreviated name of Jesus Christ
An independent clause in the study of grammar

Organizations

Schools

Illinois College, Jacksonville, Illinois, US
Imperial College London, UK
International College, Beirut, Lebanon
Ithaca College, Ithaca, New York, US

Other organizations

Industry Canada, a division of the Canadian government
Ingobamakhosi Carbineers, an infantry regiment of the South African Army
United States Intelligence Community, a group of government agencies
InterContinental, a hotel chain, or its parent company InterContinental Hotels Group
Iron Cross (Burmese band)
IC, postnominal letters for a member of the Rosminians, officially the Institute of Charity

Transportation

Illinois Central Railroad (reporting mark IC)
Indian Airlines (IATA airline designator IC)
Intercités, classic long-distance passenger day and night train services in France operated by SNCF
InterCity, certain long-distance passenger train services in Europe

Other uses

IC codes, police shorthand expressions for apparent ethnicity
Identity card
Incident commander, person responsible for all aspects of an emergency response
Individual contributor, a business role for an employee without management responsibilities
Internal control, in accounting
Intimacy coordinator, staff member on theater, film and television productions
Canary Islands (ISO 3166-1 code: IC)

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