This week's book giveaway is in the Cloud/Virtualization forum. We're giving away four copies of Learning OpenStack Networking: Build a solid foundation in virtual networking technologies for OpenStack-based clouds and have James Denton on-line! See this thread for details.
No, the definition of "removed" was given earlier:
3.2 Entity Instance’s Life Cycle A removed entity instance is an instance with a persistent identity, associated with a persistence context, that will be removed from the database upon transaction commit.