Australian oak

noun

: any of several Australian trees: such as

a

: silk oak

b

: either of two mountain ashes (Eucalyptus regnans and E. delagatensis) having rather hard heavy durable pinkish or light brown wood that works and polishes well

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