List of Acronyms and Initialisms: I - IS

IS

  • is – (s) Icelandic language (ISO 639-1 code)
  • IS
    • (s) Iceland (ISO 3166 digram)
    • Israel (FIPS 10-4 country code)
  • ISA
    • (i) Individual Savings Account
    • Industry Standard Architecture
    • Instruction Set Architecture
    • International Seabed Authority
  • ISAAA – (i) International Service for the Acquisition of Agri-biotech Applications
  • ISAF
    • (a) International Sailing Federation
    • International Security Assistance Force
  • ISAR – (a) Inverse SAR (Synthetic Aperture Radar)
  • ISB – (i) Intermediate Staging Base
  • ISBN – (i) International Standard Book Number (ISO 2108)
  • ISCCP – (i) International Satellite Cloud Climatology Project
  • ISCII – (a) Indian Standard Code for Information Interchange
  • ISDN – Integrated Services Digital Network
  • ISEF – (a) Intel International Science and Engineering Fair
  • ISEN – (i) Internet Search Environment Number
  • ISF – (i) Internal Security Force
  • ISI
    • Indian Standards Institute, former name of the Bureau of Indian Standards
    • Inter-Services Intelligence (Pakistan)
    • Islamic State of Iraq, an umbrella organization for several Iraqi insurgent groups
  • ISIS – (i/a) Institute for Science and International Security
  • ISK – (s) Icelandic krona (ISO 4217 currency code)
  • isl – (s) Icelandic language (ISO 639-2 code)
  • ISL – (s) Iceland (ISO 3166 trigram)
  • ISLN – (i) International Standard Lawyer Number (used initially by LexisNexis Martindale-Hubbell)
  • ISM
    • (i) Industrial, scientific or medical
    • (p) Interstellar medium
  • ISMB – (i) International Society of Matrix Biologists
  • ISMC – (i) Intelligent Sounding Meaningless Conversation
  • ISO
    • (i) In Search Of
    • (s) International Organization for Standardization (from the Greek ίσος, isos, meaning "equal")
  • ISOGP – (i) Indian Society of Orthodontics for General Practitioners
  • ISP
    • (i) International Standardized Profile
    • Internet Service Provider
    • Information Systems Professional
  • ISPE – (a/i) International Society for Pharmacoepidemiology
  • ISR
    • (i) Intelligence, Surveillance and Reconnaissance
    • (s) Israel (ISO 3166 trigram)
  • ISRO – (i) Indian Space Research Organisation
  • ISS
    • (i) International Shorebird Survey (North America)
    • International Space Station
  • ISSCR – (i) International Society for Stem Cell Research
  • ISSN – (i) International standard serial number (ISO 3297)
  • IST
    • (i) Information System Technology
    • UCF Institute for Simulation and Training
  • ISTAR – (i) Intelligence, Surveillance, Target Acquisition, and Reconnaissance
  • ISTC – (i) Institute of Scientific and Technical Communications (UK)
  • ISTS – (i) Intel Science Talent Search
  • ISU
    • (i) Integrated Sight Unit
    • International Skating Union

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