The Collaborative International Dictionary
Brisure
Brisure \Bri*sure"\, n. [F.]
(Fort.) Any part of a rampart or parapet which deviates from the general direction.
(Her.) A mark of cadency or difference.
Wiktionary
brisure
n. 1 Any part of a rampart or parapet which deviates from the general direction. 2 (context heraldry English) A mark of cadency or difference.