Pronunciation: (är'ki-trāv"), [key]
1. the lowermost member of a classical entablature, resting originally upon columns. See diag. under column.
2. a molded or decorated band framing a panel or an opening, esp. a rectangular one, as of a door or window.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.