Discards

Cards that have been used and are no longer in play. In video and draw poker, cards that have been replaced in the hope of improving a hand. 

Examples:

Is there a program that tracks Caribbean Stud Poker discards?

You need to put the discards on a tray before you get any replacements.

In brick-and-mortar casinos, the discard tray often has a red glass filter that allows dealers and the casino security staff to spot the marked cards.

I always keep an eye on the pile of discards, just in case.

It is impossible to count cards when the dealer puts discards back into the shuffle.

The outcome of the game is based on the player decision to keep or discard cards.