A state or a group of states in a Markov chain is called absorbing if the system can never get out of that state or the group of states (if it ever reaches it).

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In a Markov chain, an absorbing state is one that, once entered, cannot be left. Similarly, a group of states is absorbing if, once the system enters any state within the group, it cannot exit to a state outside of that group.

A State or a Group of States in a Markov