from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A bonelike substance covering the root of a tooth.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A bony substance that covers the root of a tooth; cement.
from The Century Dictionary and Cyclopedia
- n. In anatomy, same as cement, 4.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a specialized bony substance covering the root of a tooth
Lieberman looked at the growth patterns of a bonelike tissue called cementum, which is continuously deposited around the roots of mammalian teeth.
Like all mammals, we have a cycle of formation of rings around the tooth root called cementum annuli that form annually.
The volcanic ash and pulverized brick additives which were added to the burnt lime to obtain a hydraulic binder were later referred to as cementum, cimentum, cäment and cement.
Well, the narwhal tooth does not have enamel, just a cementum covering like the root of a tooth.
The biological basis for seasonal increments in dental cementum and their application to archaeological research.
Teeth are comprised of three tissues: enamel, dentine and cementum.
We refer to these layers as “cementum increments” or “dental increments”.
That information would be of little use except for one other characteristic that cementum possesses: it is deposited in distinct layers that correspond to seasons of the year and by extension, track the age of the animal until death.
In general, cementum forms along the roots of teeth within the alveolar bony socket of your upper and lower jaw.
You exert great pressure longitudinally and laterally when you chew, and without deposition of cementum your teeth would be loosened from your skull.