Nitrogen
41Nitrogen trichloride — Nitrogen trichloride …
42Nitrogen triiodide — IUPAC name …
43Nitrogen washout — (or Fowler s method) is a test for measuring dead space in the lung during a respiratory cycle, as well as some parameters related to the closure of airways. Contents 1 Procedure 2 Parameters 3 See also 4 References …
44Nitrogen balance — is the measure of nitrogen output subtracted from nitrogen input.[1] Blood urea nitrogen can be used in estimating nitrogen balance, as can the urea concentration in urine. A positive value is often found during periods of growth, tissue repair… …
45Nitrogen inversion — in ammonia Inversion of an amine. The pair of dots represents the lone electron pair on the nitrogen atom. In chemistry, a nitrogen compound like …
46nitrogen balance — n the difference between nitrogen intake and nitrogen excretion in the animal body such that a greater intake results in a positive balance and an increased excretion causes a negative balance see NITROGEN EQUILIBRIUM * * * the relationship… …
47Nitrogen assimilation — is a fundamental biological process that occurs in plants and algae that are incapable of independent nitrogen fixation. The assimilation of nitrogen has marked effects on plant productivity, biomass, and crop yield, and nitrogen deficiency leads …
48nitrogen cycle — n 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 * * * the steps by which… …
49nitrogen equilibrium — n nitrogen balance when intake and excretion of nitrogen are equal called also nitrogenous equilibrium * * * nitrogenous equilibrium the condition in which the body is metabolizing and excreting as much nitrogen as it is receiving in the food,… …
50nitrogen fixation — n 1) the industrial conversion of free nitrogen into combined forms useful esp. as starting materials for fertilizers or explosives 2) the metabolic assimilation of atmospheric nitrogen by soil microorganisms and esp. rhizobia and its release for …
