Definition of Haber process in US English:

Haber process

(also Haber–Bosch process)


  • An industrial process for producing ammonia from nitrogen and hydrogen, using an iron catalyst at high temperature and pressure.

    • ‘Today, nearly a century later, the Haber process remains the only economically viable method for producing synthetic nitrogen fertilizer.’
    • ‘The Haber process itself is about 100 years old.’
    • ‘One will want to convert H 2 promptly to NH 3 via the high-temperature Haber process.’
    • ‘The Haber process allowed the mass production of fertilizers, which has fueled a boom in agricultural productivity.’
    • ‘Researchers estimate that at least one-third of the human population is currently being fed, directly or indirectly, with the help of the Haber process.’


Named after Fritz Haber (1868–1934) and Carl Bosch (1874–1940), German chemists.


Haber process

/ˈhäbər ˌpräses/