from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An extension to the dentary in the jawbone of some dinosaurs
from The Century Dictionary and Cyclopedia
- Situated in advance of the dentary element or bone of the lower jaw, as a bone of some reptiles.
Sorry, no etymologies found.
Front teeth were lacking, while a predentary bone was present in the front of the lower jaw.