An irresistible physical or psychological need, especially for a chemical substance.
The state of being dependent, of relying upon another.
An activity or entity that inspires a compulsive and potentially unhealthy fixation, or the fixation thereby inspired.
An idea that engenders a compulsive or irrational preoccupation, or the preoccupation thereby engendered.
The quality of being obsessed.
Influence or control by evil spirits without possession.