1. a precision instrument used in surveying and engineering to measure horizontal and vertical angles
Usage: technical; surveying

Examples

• The surveyor set up the theodolite on a tripod to measure the property boundaries.
• Engineers used a theodolite to determine the exact angles needed for the bridge construction.
• The theodolite’s telescope can rotate both horizontally and vertically for precise measurements.
• Land surveyors rely on theodolites to create accurate maps and property surveys.
• The construction crew positioned the theodolite at the corner of the lot.
• Modern electronic theodolites can display angle measurements digitally.