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nounthe act of observingtype of:
Definition that contains sighting
- flagpole surveying instrument consisting of a straight rod painted in bands of alternate red and white each one foot wide; used for sightings by surveyors
- bombsight a sighting device in an aircraft for aiming bombs
- landfall the first sighting of land from the sea after a voyage (or flight over water)
- cross hair either of two fine mutually perpendicular lines that cross in the focus plane of an optical instrument and are use for sighting or calibration
- cross wire either of two fine mutually perpendicular lines that cross in the focus plane of an optical instrument and are use for sighting or calibration
- range pole surveying instrument consisting of a straight rod painted in bands of alternate red and white each one foot wide; used for sightings by surveyors
- ranging pole surveying instrument consisting of a straight rod painted in bands of alternate red and white each one foot wide; used for sightings by surveyors
- abney level 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