1. The science of the refraction of light

Encyclopedia: Dioptrics

• breathing in
• breathing machine
• breathing out
• breathing place
• breathing room
• breathing space
• breathing spell
• breathing time
• breathless
• breathlessly
• breathlessness
• breathtaking
• breathtakingly
• breathy
• breccia
• brecciate
• Brecht
• brede
• breech
• breech birth
• breech closer
• breech delivery
• breech presentation
• breech-loading
• breechblock