simulant

/ˈsɪmjələnt/
noun
  1. Something that simulates or imitates something else, especially a substance or object used for testing or training.
    • The lab used a chemical simulant to test the safety equipment without using real toxins.
    • The military uses a simulant for explosives in training exercises to avoid accidents.
    • During the drill, firefighters practiced with a smoke simulant to mimic real conditions.
adjective
  1. Simulating or imitating something; having the appearance or effect of something else.
    • The simulant gemstone looked exactly like a diamond but was made of glass.
    • The simulant leather felt soft but was actually a synthetic material.
    • Doctors used a simulant virus in the vaccine trial to test immune responses safely.
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