'Flower-de-luce' definitions:

Definition of 'Flower-de-luce'

From: GCIDE

Flower-de-luce \Flow"er-de-luce"\, n. [Corrupted fr. fleur-de-lis.] (Bot.) A genus of perennial herbs (Iris) with swordlike leaves and large three-petaled flowers often of very gay colors, but probably white in the plant first chosen for the royal French emblem. [1913 Webster]
Note: There are nearly one hundred species, natives of the north temperate zone. Some of the best known are {Iris Germanica}, I. Florentina, I. Persica, {I. sambucina}, and the American I. versicolor, {I. prismatica}, etc. [1913 Webster]