Definition of nitrogen fixation
: the conversion of atmospheric nitrogen into a combined form (such as ammonia) through chemical and especially biological action (such as that of soil rhizobia)
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Recent Examples of nitrogen fixation from the Web
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These plants collaborate with soil bacteria to absorb nitrogen from the air and deposit it in tiny root nodules—a process called nitrogen fixation.
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Johan Kers, Joyn Bio’s head of nitrogen fixation, said in a statement.
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In chemistry applications, a few hundred qubits can be used for, say, helping develop catalysts for nitrogen fixation.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'nitrogen fixation.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of nitrogen fixation
1893
NITROGEN FIXATION Defined for Kids
nitrogen fixation
Definition of nitrogen fixation for Students
: the changing of nitrogen into an available and useful form especially by bacteria (
nitrogen-fixing bacteria
)
Medical Dictionary
nitrogen fixation
medical Definition of nitrogen fixation
1
: the industrial conversion of free nitrogen into combined forms useful especially as starting materials for fertilizers or explosives
2
: the metabolic assimilation of atmospheric nitrogen by soil microorganisms and especially rhizobia and its release for plant use by nitrification in the soil on the death of the microorganisms
Learn More about nitrogen fixation
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Britannica.com: Encyclopedia article about nitrogen fixation
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