1. Attached by one’s own inclination, self-addicted to (a practice); devoted, given, inclined to.
2. To devote, give up, or apply habitually to a practice.
3. Formally made over or bound (to another); attached by restraint or obligation; obliged, bound, devoted, consecrated.
4. One who is addicted to the habitual and excessive use of a drug.

Why is it that drug addicts and computer enthusiasts are both called "users"?

• Internet access has become a vital part of the modern world and an important tool in the education of children.
• Like addiction to drugs, alcohol, cigarettes, or caffeine, internet addiction is marked by symptoms of increasing tolerance, withdrawal, mood changes, and interruption of social relationships.
• Children and adolescents who have become addicted to the internet will require increasing amounts of time online in order to feel satisfied.
• When they do not have access to the internet, they may have symptoms of withdrawal, which include anxiety, depression, irritability, trembling hands, restlessness and obsessive thinking or fantasizing about the internet.
• Internet addiction is not limited just to introverted "computer-techies".
• The internet can provide a welcome escape for individuals who already suffer from a variety of psychological difficulties including anxiety, depression, and low self-esteem.
• Additionally, those who have struggled with other types of addiction may more easily become obsessed with the internet.