1. A hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known
   - osmium, Os

Type of: metal, metallic element

• par
• par excellence
• par value
• para
• para aminobenzoic acid
• para I
• Para River
• Para rubber
• Para rubber tree
• parable
• parabola
• parabolic
• parabolic geometry
• parabolic mirror
• parabolic reflector
• parabolical
• parabolically
• paraboloid
• paraboloid reflector
• paraboloidal
• Paracelsus
• paracentesis
• paracentral scotoma
• paracervical block
• paracetamol