nitrogenase

noun 0.690

carbon fixation

noun 0.679

nitrogen cycle

noun 0.663

nitrogen

noun 0.656

denitrification

noun 0.655

dinitrogenase

noun 0.630

dinitrogen

noun 0.619

fixation

noun 0.601

nodulation

noun 0.597

nitriding

noun 0.587

nitration

noun 0.572

ammonification

noun 0.569

denitration

noun 0.565

denitrogenation

noun 0.563

nitrogen balance

noun 0.554

diazotroph

noun 0.548

nitrogen oxide

noun 0.546

nitrosylation

noun 0.546

nitrogen dioxide

noun 0.542

fixing

noun 0.529

nitrogen monoxide

noun 0.526

liquid nitrogen

noun 0.523

nitrogen narcosis

noun 0.520

nitrogen trichloride

noun 0.519

dinitrogen pentoxide

noun 0.515

hydrogenation

noun 0.513

photosynthesis

noun 0.513

nitride

noun 0.507

diazotization

noun 0.501

carbon sequestration

noun 0.501

nitrate

noun 0.500