disconnection

Etymology

dis- + connection

noun

1. Severance of a physical connection.
   The disconnection of the power cable shut down all the computers.
2. Unexpected termination of a telephone connection.
   A sudden disconnection cut me off in mid-phrase.
3. Absence of rapport; the nonexistence of, or a breakdown of, effective communication.
   There was a hopeless disconnection between the weary, old teacher and the spirited, young students.