The meaning of the Acronym OT is...

OT is

• Old Testament
• Occult Truth
• Operating Thetan

More Meanings For OT:

• One Time
• Object Type
• Operator Terminal
• Open Trapdoor
• Old Technology
• Off Topic
• On Topic
• Open Topic
• Off Theme
• Other Things
• Overflow Threshold
• Overload Time
• Optical Transient
• Other Terms
• Office of Telecommunications

OT is also in:

• Architecture
• Assembly
• Chat
• Databases
• Electronics
• General
• Mathematics
• Ocean Science
• Security
• Software