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magnetic variation

noun, Navigation.
variation (def 8). Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for magnetic variation
Historical Examples
  • The discovery of the line of no magnetic variation, which, as we shall see, eventually led to the circumnavigation of the earth.

  • I therefore returned to the camp and helped Dovers take observations for longitude and magnetic variation.

    The Home of the Blizzard Douglas Mawson
  • Fog forms at one period of the magnetic variation, cloud at another.

    The Philosophy of the Weather Thomas Belden Butler
  • That is the magnetic variation, plus 14.8 minutes for those iron boxes, of this place at the present moment.

    A. D. 2000 Alvarado M. Fuller
  • As the compass is a universal navigational instrument, information as to the magnetic variation is needed for the charts.

    Nautical Charts G. R. Putnam
  • Compasses are for convenience printed on the charts, and data given as to the magnetic variation and its rate of change.

    Nautical Charts G. R. Putnam
  • magnetic variation charts are published by both the United States and British governments.

    Nautical Charts G. R. Putnam
  • On these charts he set down lines connecting those localities at which the magnetic variation was identical.

    Great Astronomers R. S. Ball
  • By an azimuth of the sun's centre taken this morning, the magnetic variation was observed to be about 20 minutes west.

  • He took the "lay" of the place with a pocket-compass, allowing two seconds for magnetic variation.

British Dictionary definitions for magnetic variation

magnetic variation

another name for magnetic declination
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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