Caustic

Caustic most commonly refers to:

• Causticity, a property of various corrosive substances
  • Sodium hydroxide, sometimes called caustic soda
  • Potassium hydroxide, sometimes called caustic potash
  • Calcium oxide, sometimes called caustic lime

Caustic may also refer to:

• Caustic (optics), the envelope of light rays reflected or refracted by a curved surface or object, or the projection of that envelope of rays on another surface
• Caustic (mathematics), the envelope of rays reflected or refracted by a manifold, in differential geometry
• Caustic (band), an American industrial/powernoise band
• Caustic Window, an alias of Aphex Twin (electronic musician Richard D. James)
• Caustic, a playable character in the battle royale game Apex Legends
• Caustic Graphics, Inc., developer of hardware/software real-time ray-tracing graphics technology, since 2010 part of Imagination Technologies Group plc.