Daily Almanac for
Nov 7, 2009
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per•turb



Pronunciation: (pur-tûrb'), [key]
—v.t.
1. to disturb or disquiet greatly in mind; agitate.
2. to throw into great disorder; derange.
3. Astron.to cause perturbation in the orbit of (a celestial body).

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

pertinentperturbation
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