Medical Definition of dental sac
: the mesenchymal investment of the developing tooth and enamel organ that differentiates into cementoblasts about the dentin and forms a connective tissue sheath about the enamel organ
Test Your Vocabulary
Who Knew?
-
- What is a ruelle?

Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
Spell words. Make bears.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Ask the Editors