nitrogen balance

nitrogen balance   n.  The difference between the amount of nitrogen taken into the body or the soil and the amount excreted or lost.

Main Entry: nitrogen balance
Function: noun
: the difference between nitrogen intake and nitrogen excretion in the animal body such that a greater intake results in apositive balance and an increased excretion causes a negative balance —see NITROGEN EQUILIBRIUM

nitrogen balance n.
The difference between the amount of nitrogen taken into the body and the amount excreted or lost.