fathead minnow

noun

variants or less commonly fatheaded minnow

: a widely distributed North American cyprinid fish (Pimephales promelas) occurring from southern Canada and New York westward down the Mississippi valley and into Mexico and in some areas esteemed as a panfish

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