The meaning of the Acronym OD is...

OD is

• Operator Dialed

More Meanings For OD:

• Omni-Directional
• Outside Dimension
• Outside Diameter
• Opal Diffuser
• Open Drain
• Off Diagonal
• Optical Density
• Optical Depth
• Originally Detectable
• Other Dimension
• Oxford Dictionary
• Outgoing Degree
• Outside Discussions
• Overnight Deposits
• Order Description

OD is also in:

• Accounting
• Amateur Radio
• Architecture
• Electronics
• General
• Mathematics
• Ocean Science
• Physics
• Universities