navigational instrument

Thesaurus

Noun

1.

navigational instrument - an instrument used for navigating artificial horizon, flight indicator, gyro horizon - a navigational instrument based on a gyroscope; it artificially provides a simulated horizon for the pilotcompass - navigational instrument for finding directionsdepth finder - navigational instrument used to measure the depth of a body of water (as by ultrasound or radar)inclinometer - an instrument showing the angle that an aircraft makes with the horizoninstrument - a device that requires skill for proper useasdic, echo sounder, sonar - a measuring instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to return; "sonar is an acronym for sound navigation ranging"; "asdic is an acronym for antisubmarine detection investigation committee"