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Noun: blocker  bló-ku(r)
  1. A class of drugs that inhibit (block) some biological process
    - blocking agent
     
  2. A football player whose responsibility is to block players attempting to stop an offensive play
     
  3. Someone or something that blocks progress

Derived forms: blockers

Type of: football player [N. Amer], footballer [N. Amer], medicament, medication, medicinal drug, medicine

Encyclopedia: Blocker, Oklahoma