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mass media
mass noun
mass number
mass observation
mass-produce
mass production
mass society
mass sociogenic illness
mass spectrometer
mass spectrum
mass transit
mass wasting
Massachusett
Massachusetts
Massachusetts Bay
massacre
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mass spectrometer
mass spec·trom·e·ter (plural mass spec·trom·e·ters)


noun 
Definition:
 
device separating constituents: an instrument that separates atoms and molecules according to their mass and that records the resulting mass spectrum

mass spec·tro·met·ry noun
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