‖n.; pl.Fleurs-de-lis [ F., flower of the lily. Cf. Flower-de-luce, Lily. ] 1. (Bot.) The iris. See Flower-de-luce. [ 1913 Webster ]
2. A conventional flower suggested by the iris, and having a form which fits it for the terminal decoration of a scepter, the ornaments of a crown, etc. It is also a heraldic bearing, and is identified with the royal arms and adornments of France. [ 1913 Webster ]