Heterodonta

plural noun

Het·​er·​odon·​ta

in some classifications

: an order of Lamellibranchia comprising bivalve mollusks with few hinge teeth but usually with both lateral and cardinal teeth and with unequal adductor muscles

Word History

Etymology

New Latin from heter- + -odonta

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