gyrocompass

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noun gy·ro·com·pass \ˈjī-rō-ˌkəm-pəs also -ˌkäm-\

Definition of gyrocompass

  1. :  a compass consisting of a continuously driven gyroscope whose spinning axis is confined to a horizontal plane so that the earth's rotation causes it to assume a position parallel to the earth's axis and thus point to the true north

1910

First Known Use of gyrocompass

1910


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