identification particle

Definitions of identification particle
  1. noun
    a tiny particle of material that can be added to a product to indicate the source of manufacture
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    (trademark) a microscopic and traceable identification particle used to trace explosives or other hazardous materials or to prevent counterfeiting
    type of:
    atom, corpuscle, molecule, mote, particle, speck
    (nontechnical usage) a tiny piece of anything
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