1. Tall widely distributed elm of eastern North America
   "The rock elm's dense wood was prized for making tool handles";
   - Ulmus thomasii
    
2. Large ornamental tree with graceful gradually spreading branches common in eastern North America
   "The rock elm provided welcome shade in the town square";
   - American elm, white elm, water elm, Ulmus americana

Derived forms: rock elms

Type of: elm, elm tree

Part of: genus Ulmus, Ulmus

Encyclopedia: Rock elm