Kyle McGrath DBZ Dictionary Definition Edit
By definition placing the top card of your Discard Pile at the bottom of your Life Deck. A card may reference the Rejuvenate term and state a different location for either the card being Rejuvenated, the final location of the card, or how it is put into the Life Deck. If this occurs, the effect is still considered to be a Rejuvenate effect, so long as, the card states Rejuvenate.
Definition Specific Rulings and Clarifications Edit
The act of Rejuvenating is inherently the top card of your discard pile being placed on the bottom of your Life Deck.
When a single instance of Rejuvenation causes you to Rejuvenate multiple cards, they are Rejuvenated one at a time (starting with the top card).