1. (n.) A shrub of the genus Syringa. There are six species, natives of Europe and Asia. Syringa vulgaris, the common lilac, and S. Persica, the Persian lilac, are frequently cultivated for the fragrance and beauty of their purplish or white flowers. In the British colonies various other shrubs have this name.

2. (n.) A light purplish color like that of the flower of the purplish lilac.

lavender lilac livid magenta mauve mulberry orchid pansy-purple plum-colored plum-purple purple purplescent purplish purply purpurate purpure purpureal purpurean purpureous raisin-colored violaceous violet