窒ちっ素そ固こ定ていMeaningsNoun1. nitrogen fixationKanji used窒suffocate素elementary固solidify定definePitch accentちっそこていComposed of窒ちっ素そnitrogen (N)Noun固こ定ていfixing (in place); being fixed (in place); securing; anchoring; fastening down; fixing (e.g. salary, capital); keeping the same; fixation (histology)Noun