postcentrum

noun

post·​centrum

"+

: a distinct posterior part of the centrum of a vertebra in some fishes formed by coossification of the interventral and interdorsal arcualia

—opposed to precentrum

Word History

Etymology

New Latin, from post- + centrum

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