substance abuser

/ˌsʌbstəns əˌbjuzər/

Definitions of substance abuser

1. noun

   a person who takes drugs
   synonyms: drug user, user

   types:

   addict

   someone who is physiologically dependent on a substance; abrupt deprivation of the substance produces withdrawal symptoms

   acid head

   someone who takes LSD

   caffein addict, caffeine addict

   someone addicted to caffeine

   drug addict, junkie, junky

   a narcotics addict

   hash head

   a user of hashish

   pill head

   a consumer of amphetamine pills

   pothead

   someone who smokes marijuana habitually

   speed freak

   addict who habitually uses stimulant drugs (especially amphetamines)

   type of:

   individual, mortal, person, somebody, someone, soul

   a human being