ray·​on·​nant | \ ˈrāənənt\

Definition of rayonnant

1 : depicted with rays darting forth used especially in heraldry a sun rayonnant
2 : characterized by the use of radiating lines (as in window tracery) used of a French Gothic architectural style of the 14th century

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History and Etymology for rayonnant

French, from present participle of rayonner to radiate, from Middle French, from rayon ray

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to speak slightingly about or to degrade

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