frilled shark

noun

variants or frill shark

: an eel-shaped shark (Chlamydoselachus anguineus) found in deep water off the coast of Japan and in parts of the Atlantic that has six pairs of gill slits with broad frilled margins and a terminal mouth

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