aneroid baumanometro is incorrectly written and should be written as "aneroid baumanometro" being its meaning:
Word's Greek etymology, created by the French inventor Pierre Varignon of century XVII-XVIII ( hands: light, not very dense; Metron metrou: measure; an: no, no; AER aeros: air and eideos eidos: shape, appearance, idea ) that would mean not very dense, vacuum measurement. It is the unit for measuring blood pressure created in 1915 by William A. Baum. The prefix bau - does honor to its name.
