giant foxtail

noun

: either of two coarse annual foxtails of the genus Setaria that are naturalized weeds in parts of the U.S.:

a

: an Asiatic foxtail (S. faberii) widely established in the eastern U.S.

b

: a West Indian foxtail (S. magna) established chiefly in the southeastern and southern U.S.

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