Pronunciation: (är'dur), [key]
1. great warmth of feeling; fervor; passion: She spoke persuasively and with ardor.
2. intense devotion, eagerness, or enthusiasm; zeal: his well-known ardor for Chinese art.
3. burning heat. Also, esp. Brit.,ar'dour.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.