mass spectrometer

mass spectrometer

noun Physics.
a device for identifying the kinds of particles present in a given substance: the particles are ionized and beamed through an electromagnetic field and the manner in which they are deflected is indicative of their mass and, thus, their identity.

Origin:
1930–35
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Mass spectrometer is always a great word to know.
So is cosmic ray. Does it mean:
the process in which energy is emitted as particles or waves, transmitted through an intervening medium or space, and absorbed by another body
a radiation of high penetrating power that originates in outer space and consists partly of high-energy atomic nuclei
Collins
World English Dictionary
mass spectrometer or mass spectroscope
 
n
an analytical instrument in which ions, produced from a sample, are separated by electric or magnetic fields according to their ratios of charge to mass. A record is produced (mass spectrum) of the types of ion present and their relative amounts
 
mass spectroscope or mass spectroscope
 
n

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