Wiktionary
detailed balance
n. (context mathematics probability theory English) a Markov process is said to show '''detailed balance''' if the transition rates between each pair of states ''i'' and ''j'' in the state space obey
Wikipedia
Detailed balance
The principle of detailed balance is formulated for kinetic systems which are decomposed into elementary processes (collisions, or steps, or elementary reactions): At equilibrium, each elementary process should be equilibrated by its reverse process.
Usage examples of "detailed balance".
But Joseph did all the rest: the layout of the labs, and the detailed balance of the aquasphere.