Emily Dickinson Lexicon

LUX-U'RI-ANCE, or LUX-U'RI-AN-CY, n. [L. luxurians, luxurio, to grow rank, or to wanton.]

1. Rank growth; strong, vigorous growth; exuberance. Flowers grow up in the garden with the greatest luxuriancy and profusion. – Spectator.
2. Excessive or superfluous growth. A fungus prevents healing only by its luxuriancy. – Wiseman.