Top Definition
an electronic device that records EEG data.
The i-Brain is an EEG-recording tool that is easy to operate.
by uttam maharjan July 09, 2012
1 more definition
Noun- Used to describe an iPod when a person uses it as a secondary brain, and can not function without it.
Example 1
I dont know how I am going to survive the day, my iBrain died on the way to work today.

Example 2
Subject one~do you know what the number to order pizza is?
Subject 2~No my iBrain got deleated when i synced it to your computer.
by monsterwise2189 September 10, 2011

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