sur•face-to-airPronunciation: (sûr'fis-tOO-âr'), [key]
(of a missile, message, etc.) capable of traveling from the surface of the earth to a target in the atmosphere.
from the surface of the earth to a target in the atmosphere: an antimissile missile fired surface-to-air.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.