.. _glossary-z: ============================= Memory Management Glossary: Z ============================= .. include:: alphabet.txt .. glossary:: ZCT .. see:: :term:`zero count table`. zero count table .. aka:: *ZCT*. A *zero count table* is used in :term:`deferred reference counting` to record :term:`objects` whose :term:`reference counts ` have dropped to zero but which have not been processed to see if they can be :term:`reclaimed`.