Gastrochaena

noun

Gas·​tro·​chae·​na

: a genus of bivalve mollusks (order Eulamellibranchia) that bore in coral, soft rock, or hardened mud and have long siphons and a widely gaping shell

Word History

Etymology

New Latin, from gastr- + -chaena (from Greek chainein to yawn, gape)

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