Ic
title: "Ic" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public topic_path: "uncategorized" source: "https://en.wikipedia.org/wiki/Ic" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
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
- IC, or collector current, in bipolar junction transistors
- Ice Ic, 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
- Interchange (road), is abbreviated as IC in Japan and Korea
Other technologies
- , a unit of length in the CSS standard equal to the advance measure of the 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
- Independent contractor
- Individual contributor, a business role for an employee without management responsibilities
- Infinite Craft, a video game by Neal Agarwal
- Internal control, in accounting
- Intimacy coordinator, staff member on theater, film and television productions
- Irish Cup, football cup competition in Northern Ireland
- Canary Islands (ISO 3166-1 code: IC)
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