Abbreviations starting with I (page 2 of 2)
415 abbreviations begin with I. This page lists IPsec to IYKYK.
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- IPsec – Internet Protocol Security
- IPT – Interpersonal psychotherapy
- IPV – Inactivated poliovirus vaccine
- IPv4 – Internet Protocol version 4
- IPv6 – Internet Protocol version 6
- IQ – Intelligence quotient +1 more
- IQF – Individually quick frozen
- IQR – Interquartile range
- IR – Infrared +10 more
- IRA – Individual retirement account +1 more
- irAE – Immune-related adverse event
- IRB – Institutional review board +1 more
- IRBM – Intermediate-range ballistic missile
- I.R.C. – Internal Revenue Code +3 more
- IRCA – Immigration Reform and Control Act
- IRCC – Immigration, Refugees and Citizenship Canada
- IRCTC – Indian Railway Catering and Tourism Corporation
- IRF – Inpatient rehabilitation facility
- IRF-PAI – Inpatient Rehabilitation Facility Patient Assessment…
- IRGC – Islamic Revolutionary Guard Corps
- IRIS – Immune reconstitution inflammatory syndrome
- IRL – In real life
- IRMAA – Income-Related Monthly Adjustment Amount
- IRQ – Interrupt request
- IRR – Internal rate of return +1 more
- IRS – Internal Revenue Service +1 more
- IRST – Iran Standard Time
- IRT – Item response theory +1 more
- IRV – Instant-runoff voting
- IS – Incentive spirometry +4 more
- IS-IS – Intermediate System to Intermediate System
- IS-LM – Investment-saving / liquidity preference-money supply model
- Isa. – Isaiah +3 more
- ISACA – ISACA (formerly Information Systems Audit and Control…
- ISAF – International Security Assistance Force
- ISB – Interscalene brachial plexus block
- ISBAR – Identify, Situation, Background, Assessment, Recommendation
- ISBN – International Standard Book Number
- ISC2 – International Information System Security Certification…
- iSCSI – Internet Small Computer Systems Interface
- ISD – Independent school district
- ISDA – International Swaps and Derivatives Association
- ISDN – Integrated Services Digital Network +1 more
- ISEE – Independent School Entrance Examination
- ISF – Insulin sensitivity factor +1 more
- ISIN – International Securities Identification Number
- ISIR – Institutional Student Information Record
- ISK – Icelandic krona
- ISKCON – International Society for Krishna Consciousness
- ISM – International Safety Management Code
- ISMN – Isosorbide mononitrate
- ISMP – Institute for Safe Medication Practices
- ISO – International Organization for Standardization +7 more
- ISO 27001 – ISO/IEC 27001 (information security management standard)
- ISO 4217 – ISO 4217 (international currency code standard)
- ISO 8601 – International date and time standard (ISO 8601)
- ISP – Internet service provider
- ISPS – International Ship and Port Facility Security Code
- ISR – Intelligence, surveillance and reconnaissance +2 more
- ISRO – Indian Space Research Organisation
- ISS – International Space Station +1 more
- ISSN – International Standard Serial Number
- IST – India Standard Time +4 more
- ISTG – I swear to God
- ISU – Iowa State University +1 more
- ISV – Independent software vendor
- IT – Information technology +4 more
- IT band – Iliotibial band
- ital – Italics
- ITALY – I trust and love you
- ITAR – International Traffic in Arms Regulations
- ITBS – Iliotibial band syndrome +1 more
- ITC – Input tax credit +2 more
- ITER – International Thermonuclear Experimental Reactor
- ITF – Intent to File +1 more
- ITIL – Information Technology Infrastructure Library
- ITIN – Individual Taxpayer Identification Number
- ITM – In the money
- ITP – Immune thrombocytopenia
- ITR – Income tax return
- ITSM – IT service management
- ITT – Intention-to-treat +3 more
- ITU – International Telecommunication Union +1 more
- ITV – Independent Television +1 more
- IU – Indiana University Bloomington +1 more
- IUC – Indwelling urinary catheter
- IUCN – International Union for Conservation of Nature
- IUD – Intrauterine device
- IUFD – Intrauterine fetal demise
- IUGR – Intrauterine growth restriction
- IUI – Intrauterine insemination
- IUL – Indexed universal life
- IUP – Intrauterine pregnancy
- IUPAC – International Union of Pure and Applied Chemistry
- IUPC – Intrauterine pressure catheter
- IUPUI – Indiana University–Purdue University Indianapolis
- IV – Intravenous +4 more
- IVA – Individual voluntary arrangement
- IVC – Inferior vena cava +1 more
- IVCD – Intraventricular conduction delay
- IVDA – Intravenous drug abuse
- IVDU – Intravenous drug use
- IVF – In vitro fertilization +1 more
- IVH – Intraventricular hemorrhage
- IVIG – Intravenous immunoglobulin
- IVMP – Intravenous methylprednisolone
- IVP – Intravenous push +1 more
- IVPB – Intravenous piggyback
- IVR – Interactive voice response
- IVT – Intermediate value theorem
- IVUS – Intravascular ultrasound
- Ix – Investigations
- IXP – Internet exchange point
- IYKWIM – If you know what I mean
- IYKYK – If you know, you know
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