Protium may refer to: * Protium (isotope) 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 corporation, multinational computational software company, founded in 1988 by the merger of SDA Systems and ECAD, Inc. The co ...

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