squaretail

noun

1

: brook trout

2

: a small dark long-bodied sluggish pelagic fish (Tetragonurus cuvieri) of the Atlantic, Pacific, and Mediterranean that has a compact armor of bony scales, a tail squarish in section, and flesh that is sometimes poisonous

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