noun, verb, o·ver·dosed, o·ver·dos·ing.
- (esp of drugs) an excessive dose
- to take an excessive dose or give an excessive dose to
n.1700, “an excessive dose,” from over- + dose (n.). v.1727, “to administer medicine in too large a dose” (transitive); from 1968 as “to take an overdose of drugs;” see over- + dose (v.). Related: Overdosed; overdosing. n.
- An excessive dose, especially of a narcotic.