dripstone
[′drip‚stōn] (geology)
A cave feature, such as a stalagmite, which is formed by precipitation of calcium carbonate or another mineral from dripping water.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
Dripstone
A hood mold on the outside of a wall, often used in Gothic architecture.

Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved
dripstone
headmold, dripstone, head molding, hood-mold, weather molding
The molding carried around or over the head of a door or window.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.