Protium may refer to: *

Protium (isotope) Hydrogen (1H) has three naturally occurring isotopes, sometimes denoted , , and . and are stable, while has a half-life of years. Heavier isotopes also exist, all of which are synthetic and have a half-life of less than one zeptosecond (10� ...

or hydrogen-1, the most common isotope of the element hydrogen, with one proton, one electron, and no neutrons * ''Protium'' (plant), a genus of chiefly tropical American trees in the family Burseraceae, having fragrant wood * Cadence Protium, hardware accelerated prototyping platforms for early software development by

Cadence Design Systems Cadence Design Systems, Inc. (stylized as cādence), headquartered in San Jose, California, is an American multinational computational software company, founded in 1988 by the merger of SDA Systems and ECAD, Inc. The company produces software, ...

See also