A fleuron is a flower-shaped ornament,"Fleuron" Oxford English Dictionary Second Edition on CD-ROM (v. 4.0) © Oxford University Press 2009 and in architecture may have a number of meanings:
It is a collective noun for the ornamental termination at the ridge of a roof, such as a crop, finial or épi. It is also a form of stylised Late Gothic decoration in the form of a four-leafed square, often seen on crockets and cavetto mouldings. It can be the ornament in the middle of each concave face of a Corinthian abacus. Finally, it can be a form of anthemion, a Greek floral ornament.
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See also Flamboyant
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