1. By photoelectric means
   "they measured it photoelectrically"

See also: photoelectric

• polycarpous
• Polychaeta
• polychaete
• polychaete worm
• polychete
• polychete worm
• polychlorinated biphenyl
• polychromatic
• polychrome
• polychromic
• polychromise
• polychromize
• polychromy
• Polycillin
• Polycirrus
• polyclinic
• polyconic projection
• polycotyledon
• polycrystalline
• polycystic kidney disease
• polycythemia
• polydactyl
• polydactylous
• Polydactylus
• Polydactylus virginicus