Dictionary
aer•ol•o•gy
Pronunciation: (â-rol'u-jē), [key]—
n.
1. the branch of meteorology involving the observation of the atmosphere by means of balloons, airplanes, etc.
2. (in former use by the U.S. Navy) meteorology.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.