All articles starting with I

IC Bus CE Series

The IC Bus CE Series is a Type C school bus built by IC Bus in Tulsa, Oklahoma, introduced as a 2001 model and seating up to 83 passengers.

IC3PEAK

IC3PEAK (АйсПик) is a Russian electronic duo founded 2013 in Moscow, members Nastya Kreslina and Nikolay Kostylev; witch house to dark pop, 'Death No More' hit, 2018 crackdown, exile after 2022.

IC50

IC50 (half-maximal inhibitory concentration): concentration inhibiting a biological process by 50% in vitro; distinct from EC50 and Ki, assay-dependent, converted to Ki via Cheng-Prusoff.

ICA Gruppen

ICA Gruppen, also known as ICA AB, is a Swedish grocery retail group combining the ICA Sweden wholesaler with over 1,200 retailer-owned stores, plus a pharmacy and bank.

Ica, Peru

Ica, Peru: capital of the Ica region on the southern coast, founded as Villa de Valverde in 1563. Known for pisco, grapes, Huacachina oasis, agroexports, and severe groundwater over-extraction.

Icacinaceae Miers (1851), a pantropical family of woody flowering plants in Icacinales; trees, shrubs, and lianas with unilocular ovaries and two pendulous ovules, split from a polyphyletic circumscription into Icacinaceae s.s., Stemonuraceae, Cardiopteridaceae, and Pennantiaceae.

Icahn Enterprises

Icahn Enterprises L.P., formerly American Real Estate Partners, is a master limited partnership and diversified holding company controlled by Carl Icahn, with businesses in investment, energy, automotive, and food packaging.

Icahn School of Medicine at Mount Sinai

Icahn School of Medicine at Mount Sinai (ISMMS), New York City medical and graduate school of the Mount Sinai Health System; chartered 1963, opened 1968; about $499.4 million NIH funding FY2026, 9th among U.S. medical schools.

ICalendar

iCalendar, served as ICS files, is an IETF-standardized text format for exchanging events, to-dos, and scheduling information, used by essentially all major calendar products since 1998.

ICAM1

ICAM1 (intercellular adhesion molecule 1, ICAM-1, CD54) is a human gene at 19p13.2 encoding an immunoglobulin-superfamily adhesion glycoprotein that binds LFA-1 and Mac-1, recruits leukocytes in inflammation, serves as rhinovirus receptor, and is a cancer drug target.

ICAM2

ICAM2 (CD102), intercellular adhesion molecule 2, is a human gene at 17q23.3 encoding a two-domain Ig-superfamily transmembrane glycoprotein on endothelium and lymphocytes that binds LFA-1, Mac-1, and DC-SIGN for immune surveillance.

ICAM3

ICAM3, also known as CD50, is a human protein-coding gene whose product sits on all leukocytes and serves as the principal LFA-1 ligand in early T-cell immune responses.

ICANN

ICANN (Internet Corporation for Assigned Names and Numbers) is a California-based non-profit founded in 1998 that coordinates the Internet's unique identifiers, including domain names, IP addresses, and root servers.

ICAO airport code

The ICAO airport code, formally a location indicator, is a four-letter code identifying airports worldwide, with the first letter indicating the routing area, such as KSEA for Seattle.

ICAO Annex 10

ICAO Annex 10, Aeronautical Telecommunications, is a Chicago Convention annex with international standards for aeronautical communications, navigation, and surveillance, first adopted in 1949 and organized into six volumes.

ICAO Annex 13 and international accident investigation frameworks

ICAO Annex 13 is the international standard determining which state investigates a civil aviation accident, assigning the State of Occurrence to lead, with prevention as the sole objective.

ICAO flight plan

An ICAO flight plan is a standardized plan filed with air traffic services describing a flight's route, equipment, and timing, defined in ICAO Doc 4444.

Sep 19, 2026

ICAP

ICAP plc was a London-headquartered interdealer broker founded by Michael Spencer that matched bond, currency, and derivatives trades between banks; its broking arm was sold to Tullett Prebon in 2016.

ICar (marque)

ICar, also known as Chery iCar and sold overseas as iCAUR, is Chery's electric vehicle marque, unveiled at the 2023 Shanghai Auto Show with the iCAR 03.

ICar V27

The iCAR V27, sold internationally as the iCaur V27, is a five-seat boxy SUV from Chery's iCAR brand with a range-extended electric powertrain, launched in China in March 2026.

Icaria Fossae

Icaria Fossae is a system of graben, or fault-bounded troughs, spanning a broad band of the southern highlands of Mars; the IAU approved the name in 1985.

Oct 20, 2026

Icaria Planum

Icaria Planum is a 566.59-km-diameter plain in the southern hemisphere of Mars, centered at 43.27°S, 253.96°E. IAU-approved in 1979 (formerly Bathys Planum), it is a late Noachian volcanic plateau with chloride deposits and an alluvial fan.

Icaria Rupes

Icaria Rupes is a 160-km-long thrust-fault scarp on Mars at 35.8°S, 139.6°W, IAU-approved in 2017, named for the classical albedo feature Icaria, with up to 1,175 m of structural relief.

Icarians

Icarians, followers of Etienne Cabet and his novel Voyage en Icarie, French utopian communists whose settlements ran from Texas (1848) through Nauvoo, Illinois, to Iowa communities lasting until 1898.

Icaridin

Icaridin (picaridin, Saltidin, KBR 3023) is a synthetic piperidine insect repellent developed by Bayer, similar to DEET in efficacy, sold as 15–20% sprays and lotions, US-registered since 2001/2005.

Icariin

Icariin is a prenylated flavonol glycoside, the main active constituent of Herba Epimedii from Epimedium in traditional Chinese medicine, and a weak PDE5 inhibitor studied for erectile function and bone health.

iCaRL

iCaRL (Incremental Classifier and Representation Learning) is a class-incremental learning method introduced at CVPR 2017 that lets image classifiers learn new classes over time while avoiding catastrophic forgetting.

ICarly

iCarly is a Nickelodeon teen sitcom created by Dan Schneider, airing 2007-2012 in five seasons about Carly Shay's web show with Sam and Freddie, later revived on Paramount+ 2021-2023.