The meaning of the Acronym ISD is...

ISD is

• Internal Security Division

More Meanings For ISD:

• Spelling Checker dictionary (RapidFile)
• Information Storage Device
• Integrated Solutions Division
• Improved Standard Driver
• International Subscriber Dialing
• International Standard Dial
• Information Services Division
• Interface State Density
• In-Station Diagnostics
• Intrinsically Statis Dissipative
• Increasing, Steady, or Decreasing
• Instructional Systems Design
• Instructional Support Department
• Inhibited Sexual Desire
• Imperial Star Destroyer

ISD is also in:

• Adults
• Electronics
• File Extensions
• Hardware
• Mathematics
• Science Fiction
• Software
• Telecom
• Universities