Organism Function
nitrogen fixation Audio
ni·tro·gen fix·a·tion
Subclass of:
Autotrophic Processes; Nitrogen Cycle
Definitions related to nitrogen fixation:
  • Ability of certain bacteria, fungi and blue-green algae to convert free atmospheric nitrogen to biologically usable forms such as ammonia, nitrates, or amino groups.
    CRISP Thesaurus
    National Institutes of Health, 2006
  • The process in certain BACTERIA; FUNGI; and CYANOBACTERIA converting free atmospheric NITROGEN to biologically usable forms of nitrogen, such as AMMONIA; NITRATES; and amino compounds.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2021
  • The process in which nitrogen is taken from its relatively inert molecular form (N2) in the atmosphere and converted into nitrogen compounds useful for other chemical processes, such as ammonia, nitrate and nitrogen dioxide.
    Gene Ontology Dictionary
    Gene Ontology Consortium, 2021
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.