A brooch formed of or comprising a disc, or discs; specifically a brooch of a late Roman or Anglo-Saxon type, typically formed of a flat, circular plate (often highly decorated) with a pin at the back.
Origin
Late 19th century.
Definition of disc brooch in US English:
disc brooch
(USdisk brooch)
noun
Archaeology
A brooch formed of or comprising a disc, or discs; specifically a brooch of a late Roman or Anglo-Saxon type, typically formed of a flat, circular plate (often highly decorated) with a pin at the back.