1. Having characteristics of both an acid and a base and capable of reacting as either
   - amphoteric

Encyclopedia: Amphiprotic

• investment trust
• investor
• investors club
• inveteracy
• inveterate
• inviable
• invidia
• invidious
• invidiously
• invidiousness
• invigilate
• invigilation
• invigilator
• invigorate
• invigorated
• invigorating
• invigoration
• invigorator
• invincibility
• invincible
• Invincible Armada
• invincibly
• inviolability
• inviolable
• inviolably