nitrogen cycle

noun

Definition of nitrogen cycle

: a continuous series of natural processes by which nitrogen passes successively from air to soil to organisms and back to air or soil involving principally nitrogen fixation, nitrification, decay, and denitrification

See nitrogen cycle defined for kids

First Known Use of nitrogen cycle

1906

in the meaning defined above

See Words from the same year

NEW! Time Traveler

NITROGEN CYCLE Defined for Kids

nitrogen cycle

noun

Definition of nitrogen cycle for Students

: a continuous series of natural processes by which nitrogen passes from air to soil to living things and back into the air

Medical Dictionary

nitrogen cycle

noun

medical Definition of nitrogen cycle

: a continuous series of natural processes by which nitrogen passes through successive stations in air, soil, and organisms and which principally involves nitrogen fixation, nitrification, decay, and denitrification