In heraldry, describing a shield divided into a number of triangular sections (typically 6, 8, or 10) radiating from the center.
From 'gyron' (heraldic triangle) + '-y' (adjective suffix). A heraldic term describing shields divided by multiple lines radiating from the center like a pinwheel.
A gyronny shield divided into eight sections looks like a geometric pie—it became fashionable in medieval heraldry as a way to show complexity and status through mathematical precision.
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