measurable+by+a+common+unit
131mass spectrometry — or mass spectroscopy Analytic technique by which chemical substances are identified by sorting gaseous ions by mass using electric and magnetic fields. A mass spectrometer uses electrical means to detect the sorted ions, while a mass spectrograph …
132Feudalism — • The source of feudalism rises from an intermingling of barbarian usage and Roman law Catholic Encyclopedia. Kevin Knight. 2006. Feudalism Feudalism …
