from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A device for detecting and recording variations in the intensity and direction of magnetic fields.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A instrument for measuring changes in the direction and intensity of magnetic fields

from the GNU version of the Collaborative International Dictionary of English

  • n. An automatic instrument for registering, by photography or otherwise, the states and variations of any of the terrestrial magnetic elements.

from The Century Dictionary and Cyclopedia

  • n. A magnetometer arranged to give an automatic and continuous record of the changes in position of the magnet under the influence of the earth. This is accomplished by the reflection of a spot of light from a mirror attached to the magnet on to a drum of sensitized paper turned by clockwork.
  • n. The record of a magnetometer; a magnetogram.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a scientific instrument that registers magnetic variations (especially variations of the earth's magnetic field)


Sorry, no etymologies found.



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