crocket

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A projecting ornament, usually in the form of a cusp or curling leaf, placed along outer angles of pinnacles and gables.

from The Century Dictionary.

• noun A large roll or lock of hair, characteristic of a manner of dressing the hair common in the fourteenth century. It consisted of a stiff roll, probably made over a piece of stuff, like the “rats” worn by women during the nineteenth century.
• noun One of the terminal snags on a stag's horn.
• noun In medieval architecture, a pointed decoration, an ornament most frequently treated as recurved foliage, placed on the angles of the inclined sides of pinnacles, canopies, gables, and other members, and on the outer or convex part of the curve of a pastoral staff or other decorative work. Sometimes crockets were carved in the forms of animals.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Arch.) An ornament often resembling curved and bent foliage, projecting from the sloping edge of a gable, spire, etc.
• noun A croche, or knob, on the top of a stag's antler.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun architecture Any of a series of hook-shaped decorative floral elements used in Gothic architecture

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun an architectural ornament of curved foliage used at the edge of a spire or gable