Pronunciation: (bool'yun), [key]
1. gold or silver considered in mass rather than in value.
2. gold or silver in the form of bars or ingots.
3. Also called bul'lion fringe". a thick trimming of cord covered with gold or silver thread, for decorating uniforms.
4. embroidery or lace worked with gold wire or gold or silver cords.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.