Top Definition
A heraldic convention (a line moving from bottom left to upper right corner) that illustrated bastardy. "Illegitimate" heirs could display their father's crest (like "legitimate" ones) but with an appended "bend sinister."
The "bend sinister" shown in the photo indicates that the bearer of this crest was a bastard of Lord Kent.
by BraniacBoy September 19, 2009

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