BROOCH, noun broche.
1. An ornamental utensil for fastening the vest, or the bosom of a shirt, as formerly used in America. It is usually made of silver, often round, with a tongue crossing its diameter, sometimes with two tongues. It formerly was used in England, as it was in America, and is still in the highlands of Scotland.
2. A jewel.
3. With painters, a painting all of one color.
BROOCH, verb transitive To adorn or furnish with brooches or jewels.