1. A surveying instrument consisting of a spirit level and a sighting tube; used to measure the angle of inclination of a line from the observer to the target

Type of: surveyor's level

• call-in
• call-out
• calla
• calla lily
• Calla palustris
• callable
• Callaghan
• Callas
• callathump
• callback
• caller
• caller ID
• caller-out
• caller-up
• calliandra
• Callicebus
• calligraph
• calligrapher
• calligraphic
• Annelida
• annelidan
• annex
• annexa
• annexal
• annexation