Aspidobranchia

plural noun

As·​pi·​do·​bran·​chia

-ˈbraŋkēə

: an order of Streptoneura comprising marine gastropods having the nervous system only slightly concentrated, usually exhibiting clear traces of ancestral bilateral symmetry, with two kidneys and two auricles, and including the limpets and other primitive forms

aspidobranchiate

-¦braŋkēə̇t

-ēˌāt

adjective or noun

Word History

Etymology

New Latin, from aspid- + -branchia

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