n. [ Leuco- + Gr. fy`llon a leaf. ] (Chem.) A colorless substance isomeric with chlorophyll, contained in parts of plants capable of becoming green. Watts. [ 1913 Webster ]
a. [ Gr. leyko`fyllos; leyko`s white + fy`llon a leaf. ] (Bot.) Having white or silvery foliage. [ 1913 Webster ]