ˌsībə(r)ˈned.iks; sometimes -nē-, a pronunc advocated by the introducer of the term noun plural but singular or plural in construction
Etymology: Greek kybernētēs steersman, governor (from kybernan to steer) + English -ics — more at govern
: the comparative study of the automatic control system formed by the nervous system and brain and by mechanical-electrical communication systems and devices (as computers or thermostats)