An Etymological Dictionary of Astronomy and Astrophysics

The act or state of detecting, → detect
Any operation on an electrical or electromagnetic signal to recover information from it.

Etymology (EN): M.E., from L.L. detection-, from detect(us), → detect, + -ion.

Etymology (PE): škâreš, from âškâr present-tense stem of âškâridan→ detect + -š verbal noun suffix.