1. (chemistry, physics) a property caused by asymmetrical molecular or crystal structure that enables a compound or crystal to rotate the plane of incident polarized light
   - optical rotation

Encyclopedia: Optical activity

• Phalangida
• Phalangiidae
• phalangist
• phalangitis
• Phalangium
• Phalangium opilio
• phalanstery
• phalanx
• Phalaris
• Phalaris aquatica
• Phalaris arundinacea
• Phalaris canariensis
• Phalaris tuberosa
• phalarope
• Phalaropidae
• Phalaropus
• Phalaropus fulicarius
• Phalguna
• Phallaceae
• Phallales
• phallic
• phallic phase
• phallic stage
• phallocentric
• phalloplasty