astrionics: Meaning and Definition of

as•tri•on•ics

Pronunciation: (as"trē-on'iks), [key]
— n. (used with a sing. v.) Rocketry.
  1. the science dealing with the application of electronics to astronautics.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.