abbreviation, injection drug user, especially illegal drugs. (same as IDVU)

injection drug user. a person who uses a drug (e.g., heroin, cocaine) that is administered with a needle and syringe. The term intravenous drug user (IVDU) is also sometimes used. IDU is more general, and refers to injection methods other than intravenous administration.

Injecting drug use/user; a person who injects/shoots drugs into their body.

Intravenous Drug Use

Intravenous (injection) drug user

Indoor Unit

Industry Development Unit

Industrial Dairy Production

In-Door Unit. A satellite modem that is located at each remote VSAT site and connects the users PC or network to the hub via the satellite link.