rock elm

noun

1

a

: a tall widely distributed elm (Ulmus thomasii) of eastern North America that has broadly obovate leaves narrowing abruptly to a point, grayish deeply fissured bark, and light brown wood

b

: the strong tough durable springy wood of the rock elm

2

: slippery elm

3

: american elm

The Ultimate Dicitonary 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