cybernetics

1 of 2

noun

cy·​ber·​net·​ics ˌsī-bər-ˈne-tiks How to pronounce cybernetics (audio)
plural in form but singular in construction
: the science of communication and control theory that is concerned especially with the comparative study of automatic control systems (such as the nervous system and brain and mechanical-electrical communication systems)
cybernetic adjective
or less commonly cybernetical
cybernetically adverb

cybernetic

2 of 2

adjective

cy·​ber·​net·​ic ¦sī-bər-¦ne-tik How to pronounce cybernetic (audio)
: of, relating to, or involving cybernetics
cybernetical adjective
cybernetically adverb

Word History

Etymology

Noun

Greek kybernētēs pilot, governor (from kybernan to steer, govern) + English -ics

Adjective

back-formation from cybernetics

First Known Use

Noun

1948, in the meaning defined above

Adjective

1948, in the meaning defined above

Time Traveler
The first known use of cybernetics was in 1948

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Cite this Entry

“Cybernetics.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cybernetics. Accessed 17 Jun. 2026.

Kids Definition

cybernetics

noun
cy·​ber·​net·​ics ˌsī-bər-ˈnet-iks How to pronounce cybernetics (audio)
: a science concerned especially with studies comparing automatic control systems (as that of the nervous system and brain and mechanical-electrical communication systems)
cybernetic adjective

Medical Definition

cybernetics

noun, plural in form but singular in construction
cy·​ber·​net·​ics ˌsī-bər-ˈnet-iks How to pronounce cybernetics (audio)
: the science of communication and control theory that is concerned especially with the comparative study of automatic control systems (as the nervous system and brain and mechanical-electrical communication systems)
cybernetic adjective
also cybernetical
cybernetically adverb

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