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A powerpoint slide deck containing a series of smaller, separate, yet related powerpoint presentations. Used in the place of multiple powerpoint presentations for the purpose of a single forum (e.g., a meeting with multiple parts).
Antoine: Did you prepare the presentations for tomorrow's all-day meeting?

Anthony: Yes. In fact, I combined the 6 presentations into one megadeck.
by Marty McKesson April 27, 2005
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