IR is an abbreviation for:

  • Impulse response, impulse response, see, also called weight function or impulse response, the output signal of a system in which on receipt of a Dirac pulse is supplied
  • Industrial Revolution, the profound and lasting transformation of the economic and social circumstances, working conditions and living conditions, which began in the second half of the 18th century
  • Industrial robots (also: Industrial manipulator ), a general-purpose programmable machine for handling, assembly or processing of workpieces
  • Infantry Regiment, consisting of two to four battalions or from several companies, in the cavalry usually five squadrons (or squadrons ), belonging to the same type of weapon
  • Information retrieval, a discipline that with computer-aided search for complex content ( ie, for example, no single words ) deals and falls in the fields of information science, computer science and computational linguistics
  • Infrared frequency range below the visible light, infrared radiation, see
  • Infrastructure law, monthly magazine from the house CH Beck
  • Ingénieur ( French or Dutch ), see Engineering
  • Insulin receptor, that of the membrane protein to which undistributed insulin binds and thereby exerts its effect
  • International Rectifier Corporation, a U.S. manufacturer of power semiconductors and integrated circuits, headquartered El Segundo, California
  • Internal audit, one of the daily business independent, objective assurance and consulting activity in an organization
  • Inter Regio, a train type, which is used in several European countries and has been used earlier
  • Investor Relations and Financial Communications, a task field of public relations
  • Iran, according to ISO 3166, also the international motor vehicle registration code
  • Iran Air (Persian هواپیمائی جمهوری اسلامی ایران " هما " ), an Iranian airline and flag carrier of the country, based in Tehran after the IATA code
  • Islamic Council for the Federal Republic of Germany eV, an Islamic umbrella organization in Germany
  • Isoprene rubber, artificial produced variant of the natural rubber
  • Israel Railways (Hebrew: רכבת ישראל / Rakéwet Jisra'el ), the Israeli national railway company

I.R. is an abbreviation for:

  • = Latin:. "Imperator Rex " = ger: " Emperor and King " suffix to the signature of the Emperor of Germany 1871-1918
  • Infantry Regiment, regimental see # History
  • Builds Iriver, a company that MP3 player

Ir is an abbreviation for:

  • Interrupt in the computer science understands the short-term interruption of normal program execution to perform a different, usually short, but time-critical processing
  • Iridium, a chemical element with the symbol Ir and atomic number 77

Emeritus is an abbreviation for:

  • Under
  • , usually placed after the surname retired

Ir is an abbreviation for:

  • The Dutch degree of " engineer "

. ir is an abbreviation for:

  • . ir, country code top -level domain ( ccTLD) of Iran
  • Disambiguation
  • Abbreviation