Xenarthra

plural noun

Xe·​nar·​thra

zəˈnärthrə

: a suborder or other division of Edentata comprising the American anteaters, armadillos, sloths, and usually the extinct ground sloths

xenarthral

-thrəl

adjective

or xenarthrous

-thrəs

xenarthran

-thrən

adjective or noun

Word History

Etymology

New Latin, from xen- + arthra, plural of arthron

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