Sensitivity (control systems)
WordNet
noun
(1) The ability to respond to affective changes in your interpersonal environment
(2) The ability to respond to physical stimuli or to register small physical amounts or differences
"A galvanometer of extreme sensitivity"
"The sensitiveness of Mimosa leaves does not depend on a change of growth"
(3) (physiology) responsiveness to external stimuli; the faculty of sensation
"Sensitivity to pain"
(4) Sensitivity to emotional feelings (of self and others)
(5) Susceptibility to a pathogen