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cementum
noun
ce·men·tum si-ˈmen-təm 
: a specialized bony layer of connective tissue covering the dentin of the part of a tooth normally within the gum see tooth illustration
Example Sentences
Recent Examples on the Web An annulus, or dark ring, is formed each winter between the cementum formed in spring and summer growth periods. 
Alan Clemons, Outdoor Life, 18 Mar. 2021 From the moment a tooth emerges from the gum, cementum starts to form annual layers, similar to a tree's rings. Jack Guy, CNN, 25 Mar. 2020 The researchers are also working with high-resolution CT scans to develop a non-destructive method of studying cementum. Jack Guy, CNN, 25 Mar. 2020 In a similar vein, a substance called cementum protects your teeth’s roots, which contain the pulpy center that holds blood vessels and nerves. Korin Miller, SELF, 18 Apr. 2018 Instead, the tooth bases were caked in cementum, a bony material that affixed the teeth to the jaw, and Caldwell says that the teeth appeared to have been dislodged during fossilization. Michael Greshko, National Geographic, 2 Nov. 2016
Alan Clemons, Outdoor Life, 18 Mar. 2021 From the moment a tooth emerges from the gum, cementum starts to form annual layers, similar to a tree's rings. Jack Guy, CNN, 25 Mar. 2020 The researchers are also working with high-resolution CT scans to develop a non-destructive method of studying cementum. Jack Guy, CNN, 25 Mar. 2020 In a similar vein, a substance called cementum protects your teeth’s roots, which contain the pulpy center that holds blood vessels and nerves. Korin Miller, SELF, 18 Apr. 2018 Instead, the tooth bases were caked in cementum, a bony material that affixed the teeth to the jaw, and Caldwell says that the teeth appeared to have been dislodged during fossilization. Michael Greshko, National Geographic, 2 Nov. 2016 Word History
Etymology
New Latin, from Latin caementum
First Known Use
1842, in the meaning defined above
Time Traveler
The first known use of cementum was in 1842 👨🏻🏫 Mr. Ng 韋氏詞典 📚 – mw.mister5️⃣.net
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