pericenter

noun

peri·​center

ˈperə+ˌ-

: the point in the orbit of a revolving body nearest the center of gravity about which the body moves compare perigee, perihelion

Word History

Etymology

peri- + center

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