cementum

noun ce·men·tum \ si-ˈmen-təm \

Definition of cementum

: a specialized bony layer of connective tissue covering the dentin of the part of a tooth normally within the gum — see tooth illustration

Recent Examples of cementum from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cementum.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of cementum

New Latin, from Latin caementum


CEMENTUM Defined for Kids

cementum

noun ce·men·tum \ si-ˈmen-təm \

Definition of cementum for Students

: a thin bony layer covering the part of a tooth inside the gum

Medical Dictionary

cementum

noun ce·men·tum \ si-ˈment-əm \

medical Definition of cementum

: a specialized external bony layer covering the dentin of the part of a tooth normally within the gum called also cement; compare dentin, enamel

Illustration of cementum


Learn More about cementum


Seen and Heard

What made you want to look up cementum? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

sticky or viscid

Get Word of the Day daily email!

Test Your Vocabulary

Find the Cousins

  • a-large-tree-with-many-branches
  • Which pair shares a common word ancestor?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!