1. Various very stable chlorinated organic chemicals that can be dangerous environmental pollutants
   - PCB

Encyclopedia: Polychlorinated biphenyl

• Andrea Mantegna
• Andrea Palladio
• Andreaea
• Andreaeales
• Andreas Vesalius
• Andrei Andreyevich Gromyko
• Andrei Arsenevich Tarkovsky
• Andrei Dimitrievich Sakharov
• Andrei Gromyko
• bouncy
• bouncy castle
• bound
• bound form
• bound morpheme
• bound off
• bound up
• boundary
• boundary condition
• boundary layer
• boundary line
• bounded
• bounded interval
• boundedness
• bounden
• bounder