Define the word, "addiction". Sometimes addiction is also referred to as ...

"Addiction" is defined as patterned use resulting in dependence on mind-or mood-altering substances that has a negative influence on academic/work performance, family and interpersonal relationships, social and economic functioning, and/or physical and mental health.
The nine behaviour patterns for dependency syndrome are:
1. over-use of a substance: use a larger quantity or over a longer period than intended
2. express a persistent desire or make unsuccessful efforts to cut down or control use
3. spend a great deal of time to get or use the substance, or to recover from its aftereffects
4. frequently be too intoxicated or incapacitated by the aftereffects to fulfill major obligations
5. give up activities for substance abuse
6. continue to use the substance despite problems with it
7. develop a physical tolerance for the substance
8. display signs of withdrawal when not using the substance
9. use the substance to relieve or avoid withdrawal symptoms