IRR Technology Abbreviation

Information Request Response

Interrupt Request Register

Irrigation

A type of structural support made of metal, which can be raised or lowered through a series of pins and a screw to meet the height required. Basically used as a replacement for an old supporting member in a building. Monopost. Lawn sprinkler system

Internal Rate of Return

Internal rate of return is the rate of return, expressed as a percentage, the net present value for which is zero.

Infra-Red Reflective

Inspection Rejection Report

Instant-Recall Recorder

Institute for Rink Research

Intmgrated Resource Recovery