turnip aphid

noun

variants or turnip louse

1

: cabbage aphid

2

: a greenish plant louse (Rhopalosiphum pseudobrassicae) destructive to turnips and other brassicas

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