One who refrains from the use of something, as of narcotic drugs or alcohol.


a person who does not use a specified item or substance, predominantly an illegal drug


(nɒnˈyu zər)

a person who does not use or partake of something, as harmful drugs.
References in periodicals archive ?
TABLE 1 Demographic characteristics of respondents User Nonuser Characteristic n (%) n (%) P Female 23 (26.
For each quarter in the sample period, a BHC is labeled as a derivative user if it reported participation in any interest rate swap or futures-forward products on Schedule HC-F of the FR-Y9C report; otherwise it is labeled as a nonuser.
Next, surveys were given to students in two courses, and onsite focus groups of EMOC users and one nonuser were conducted.
A stepwise discriminant analysis was performed as an exploratory tool, using Internet users and nonusers as the grouping variable, to discover which variables are most important for distinguishing between the mutually exclusive Internet user and nonuser groups.
User and nonuser drug groups were different with regard to their homogeneity.
Consider first a resource nonuser who does not begin to participate in recreation at resource 1 with the improvement in quality.
If such relationship exists, estimates of the effect of the drugs taken from regressions for the user and nonuser populations will biased.
As relatively few students are classified as nonusers (six percent), the nonuser and occasional user categories are combined.
In addition, six persons who used crack and one nonuser were known to be seropositive for human immunodeficiency virus (HIV) but had not been diagnosed with AIDS.
The 578 study participants classified themselves according to their patterns of smokeless tobacco use: user, trier, or nonuser.
As befits the Fairfield multicultural mix, the survey was conducted in four languages--English, Spanish, Arabic and Vietnamese--and comprised a user and nonuser survey.