1. By photometric means
   "photometrically measured"

See also: photometric

• commuter
• commuter traffic
• commuter train
• commuting
• comorbid
• comorbidity
• Comoro Islands
• Comoros
• comose
• comoving
• comp
• compact
• compact car
• compact disc
• compact disc read-only memory
• compact disc recordable
• compact disc write-once
• compact disk
• compact-disk burner
• compacter
• compactify
• compaction
• compactly
• compactness
• compactor