The meaning of the Acronym IIR is...

IIR is

• Butyl Rubber

More Meanings For IIR:

• Internal Intermediate Representation
• Infinite Impulse Response
• Butyl Rubber
• Industrial Information Resources
• IRI International Corporation
• Intermediate Information Requirement
• Intelligence Information Report
• Intelligence Information Report

IIR is also in:

• Electronics
• Firms
• General
• Military
• NYSE Symbols
• Plastics
• US Government