tree lilac

noun

: a lilac of treelike form

especially : a broad-spreading white-flowered Japanese tree (Syringa amurensis japonica or S. japonica) that may exceed 35 feet in height

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now