Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
nitrogen-fixing is an adjective meaning "contributing to the process of nitrogen fixation". It carries one recorded sense.
contributing to the process of nitrogen fixation
Definitions, synonyms and semantic relations for nitrogen-fixing come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.