from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A pattern of charged atoms, molecules, or isotopes formed when a mass spectroscope distributes them by mass and records them electronically or photographically as a spectrum.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun The output of a mass spectrometer

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

  • noun a distribution of ions as shown by a mass spectrograph or a mass spectrometer


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