1. The science of the refraction of light

Encyclopedia: Dioptrics

• separate
• separate off
• separate out
• separated
• separately
• separateness
• separation
• separation energy
• separationism
• separationist
• separatism
• separatist
• separative
• separator
• separatrix
• Sephardi
• Sephardic
• Sephardic Jew
• sepia
• Sepiidae
• sepiolite
• sepoy
• Sepoy Mutiny
• seppo
• seppuku