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Related to Film badge: scintillation counter, Radioactive tracer, Neutron absorption
See: brand, designation, indicant, indication, indicator, manifestation, onus, speciality, specialty, stigma, symbol, trademark

BADGE. A mark or sign worn by some persons, or placed upon certain things for the purpose of designation. Some public officers, as watchmen, policemen, and the like, are required to wear badges that they may be readily known. It is used figuratively when we say, possession of personal property by the seller, is. a badge of fraud.

References in periodicals archive ?
We have heard earlier, in the briefing film, that film badges will be worn to determine the amount of individuals' radiation exposure, and "you'll be moved out in time to avoid sickness.
You have a well-rehearsed story explaining to the curious that your film badge does, in fact, involve the CIA, The X-Files, and alien encounters.
The top brass must have thought I was in some sort of danger because I was issued with a film badge.