n. 1. (used with a sing. verb) The science and technology of electronics and the development of electronic devices as applied to aeronautics and astronautics: Avionics has become even more important with the development of the space program. 2. (used with a pl. verb) The electronic systems, equipment, and other devices so developed: The avionics on this spacecraft represent a new generation of sophistication. [AVI(ATION) + (ELECTR)ONICS.] a′vi·onic adj. |
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