What is a flower-shaped ornament, esp. one terminating an object or forming one of a series, as a knob of a cover to a dish, or a flower- shaped part in a necklace called?

fleuron — A flower-shaped ornament, esp. one terminating an object or forming one of a series, as a knob of a cover to a dish, or a flower- shaped part in a necklace. (Webster's 1913.)

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