gyrocompass

English Thesaurus

1. a compass that does not depend on magnetism but uses a gyroscope instead (noun.artifact)

hypernym	:	compass,
definition	:	navigational instrument for finding directions (noun.artifact)

part holonym	:	gyro, gyroscope,
definition	:	rotating mechanism in the form of a universally mounted spinning wheel that offers resistance to turns in any direction (noun.artifact)