nitrification

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

noun the chemical process in which a nitro group is added to an organic compound (or substituted for another group in an organic compound)
noun the oxidation of ammonium compounds in dead organic material into nitrates and nitrites by soil bacteria (making nitrogen available to plants)

In this state it is well fitted to retain moisture and to absorb all soluble substances, as well as for the process of nitrification. — The Ontario Readers: The High School Reader, 1886, Ontario. Department of Education

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