identification tag
noun
either of two oblong metal tags, issued to armed forces personnel, on which are impressed the serial number, name, etc., of the person to whom it is issued, and carried on or about the person at all times.
Origin of identification tag
First recorded in 1915–20
Words nearby identification tag
identical twins,
identification,
identification bracelet,
identification card,
identification parade,
identification tag,
identifier,
identify,
identikit,
identity,
identity card