An iron plate fixed near the compass, to neutralize the effect of local attraction upon the needle.
·noun One who, or that which, compensates; — a name applied to various mechanical devices. II. Com...
Webster's Dictionary of the English Language
·noun A <<Magnet>>. II. Magnetic ·adj ·Alt. of <<Magnetical>>. III. Magnetic ·noun Any metal, as i...
·adj Of, Pertaining to, or produced by, magnetism which is developed by the passage of an electric c...
The angle between the east or west point of a compass and any heavenly body at its rising or setting...
The Sailor's Word-Book
An arc of the horizon intercepted between the azimuth circle of a celestial object and the magnetic ...
Applied to theodolites, ships' compasses, &c. A balanced needle, highly magnetized, which points to ...
An extraordinary magnetic action indicated by delicate magnetometers in a magnetic observatory, not ...
An instrument for communicating messages by means of magnetism. ...
See magnetic compensator. ...