• WordNet 3.6
    • n brainwave the clear (and often sudden) understanding of a complex situation
    • n brainwave (neurophysiology) rapid fluctuations of voltage between parts of the cerebral cortex that are detectable with an electroencephalograph
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Century Dictionary and Cyclopedia
    • n brainwave A so-called telepathic vibration supposed to be concerned in the transference of a thought from one mind to another by other than physical means of communication.
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In literature:

Thought exchange by "brainwave" is wonderful, even if we still need a little speech as auxiliary.
"The Brain" by Alexander Blade

In news:

A brainwave -controlled helicopter project is hoping to make the move from classrooms to homes with the help of some Kickstarter capital.
NeuroSky Necomimi Brainwave Cat Ears.
The Zeo Sleep Manager is a wireless headband that can measure brainwaves and send data about sleep to Apple devices like iPhones.
The software converts the brainwave data to flight commands, which control the flight of the spherical helicopter, Orbit.
A Brainwave-Controlled Version of " Pong ".
Get your brainwaves kickin' with the QMIX Impossible Question, crazy contests, the haps around town, and whatever else we can come up with.