WordReference Random House Learner's Dictionary of American English © 2026
a•vi•on•ics /ˌeɪviˈɑnɪks/USA pronunciation   n. [uncountable* used with a singular verb]
  1. Aeronauticsthe science and development of electronic devices used in aerospace vehicles.
a•vi•on•ic, adj. 

WordReference Random House Unabridged Dictionary of American English © 2026
a•vi•on•ics  (ā′vē on′iks, av′ē-),USA pronunciation n. 
  1. (used with a sing. v.) the science and technology of the development and use of electrical and electronic devices in aviation.
  2. Aeronautics(used with a pl. v.) the devices themselves.
  • avi(ation) + (electr)onics 1945–50
a′vi•on′ic, adj. 

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