noun
cementum; cement
Anatomical term for the calcified layer covering the root of a tooth. Compare セメント質.
See also: セメント質
歯根の表面は白亜質で覆われている。
The surface of the tooth root is covered with cementum.
noun which may take the genitive case particle 'no', noun
chalky
Describes a chalk-like quality or appearance; less common than the anatomical sense.
この岩は白亜質で、手に粉がつく。
This rock is chalky and leaves powder on your hands.