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Infrared (IR; sometimes called infrared light) is electromagnetic radiation (EMR) with wavelengths longer than that of visible light but shorter than microwaves. The infrared spectral band begins with the …

The Internal Revenue Service (IRS) administers and enforces U.S. federal tax laws.

In smaller companies, the IR function is often outsourced to independent investor relations firms. Investor relations is considered a specialty of public relations by the U.S. Department of Labor.

Find previous year news releases and fact sheets from 1997 through last month. A listing of current news releases published by the IRS.

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Ingenieur, abbreviated ir., an engineer's degree awarded by technical universities in the Netherlands, Belgium, Indonesia, and Malaysia Injured reserve list, a list of professional sports players who are …

Conjugate Ir in every Spanish verb tense including preterite, imperfect, future, conditional, and subjunctive.

Looking for online definition of IR or what IR stands for? IR is listed in the World's most authoritative dictionary of abbreviations and acronyms.