The meaning of the Acronym RI is...

RI is

• Refractive Index
• Retrograde Inversion
• Randomly Inversed
• Relative Inverse
• Randomly Initialized
• Rule Induction
• Ringlet Identifier
• Right Indication
• Rutherford Institute
• Run In
• Random Index
• Rockwell International
• Royalty Interest
• Renderman Interface
• Rotary International
• Related Injury
• Referral Interviews
• Regina Imperatrix
• Relative Intensity
• Raw Indication
• Remote Influencing
• Repubblica Italiana
• Radically Inert
• Rotation Invariant
• Rim Intensity
• R Or I
• Repec Index
• Rate Information

More Meanings For RI:

• Radical Initiator
• Recitation Instructor
• Research Institute
• Royal Institution of Great Britain
• Residual Income
• Real Interest
• Redline Imports
• Recording Industry
• Ruby Tuesday, Inc.
• Retarded Institution
• Relative Interior
• Rapist Institution
• Rule of Interpretation
• Rights Issue
• Rehabilitation International

RI is also in:

• Accounting
• Chemistry
• Educational
• Firms
• General
• Housing
• Law
• Non-Profit Organizations
• NYSE Symbols
• Universities