Dictionary
sur•face-to-air
Pronunciation: (sûr'fis-tOO-âr'), [key]—
adj.
(of a missile, message, etc.) capable of traveling from the surface of the earth to a target in the atmosphere.
—
adv.
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.