agonic lines defined in 1939 yearagonic lines - Agonic Lines (Gr. a, not; gonia, angle);
agonic lines - Two imaginary lines passing through places on the earth's surface where the magnetic declination is zero. At these places the compass points to the actual poles instead of N. or S. of them. One line passes through Eastern Europe, Arabia, the south of India, and the western part of Australia; the other from N. to S. of the American continent. See Magnetic Declination.
near agonic lines in Knolik
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