from The American Heritage® Dictionary of the English Language, 4th Edition
- n. One of two usually paired processes of the neural arch of a vertebra that articulates with corresponding parts of adjacent vertebrae.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. One of the articular processes of a vertebra, of which there are usually four, two superior and two inferior.
from the GNU version of the Collaborative International Dictionary of English
- n. One of the articular processes of a vertebra, of which there are usually four, two anterior and two posterior. See under vertebra.
from The Century Dictionary and Cyclopedia
- n. A process upon the neural arch of a vertebra corresponding to that called oblique or articular in human anatomy, provided with a facet for articulation with the same process of a preceding or succeeding vertebra, thus serving to interlock the series of vertebral arches.
Ancient Greek ζυγον ("yoke") + English apophysis (Wiktionary)