Douglas-fir beetle

noun

variants or less commonly Douglas fir bark beetle

: a bark beetle (Dendroctonus pseudotsugae) that is very destructive to Douglas fir and sometimes to western larch

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