Pronunciation: (im-pov'ur-ish, -pov'rish), [key]
1. to reduce to poverty: a country impoverished by war.
2. to make poor in quality, productiveness, etc.; exhaust the strength or richness of: Bad farming practices impoverished the soil.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.