rostralis

noun

ros·​tralis

räˈstralə̇s,

-strāl-,

-sträl-

plural rostrales

: the suctorial organ of a bug or related insect (order Hemiptera) consisting of the elongated and closely associated mandibles and maxillae

Word History

Etymology

New Latin, from rostralis, adjective, rostral

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