permissive condition

permissive condition

[pər′mis·iv kən‚dish·ən]
(genetics)
An environment under which a conditional lethal mutant can survive and show the wild phenotype.
References in periodicals archive ?
A significant amount of control logic circuits is associated not only with operating control devices, but with valid protection circuits and obtaining permissive conditions before continuing.
But they've got to be able to do so in the permissive conditions," State Department spokeswoman Victoria Nuland told reporters on Friday, saying the United States had "extreme concerns" about the continued violence.
praised how Russian government authorities enabled the permissive conditions