A foss, ditch, or pool represented as a charge on a shield.
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fusse1523
1523 Ld. Berners tr. J. Froissart Cronycles I. cclxxxi. 171 b The blasure of his armes was goules, two fusses sable [Fr. a deux fosses noires] a border sable.
This entry has not yet been fully updated (first published 1898; most recently modified version published online September 2018).