Wiktionary
n. 1 (context uncountable English) The state of being detectable 2 (context countable English) The extent to which something is detectable
Usage examples of "detectability".
They return to detectability in the process of rebounding to their original slant, but for the brief period before they have completed that rebound, the pattern of memory is reported, via biochemical and then electrochemical changes, to the brain as a whole.
After all, at a gamma factor of, say, seventy thousand, a one-minute message would stretch out to seven weeks of ordinary time, to say nothing of the redshifting of the radio waves themselves to beyond the level of detectability.
Other ships were almost as badly damaged, and the fighters which had wreaked such havoc were already returning to the shadowy carriers hanging at the very edge of detectability.