root canal
短语[医] 牙根管, [牙]髓管
词形变化
root canals
复数
root canals
释义与例句
n.
-
1.
The hollow part of the root of a tooth, containing the nerve and blood vessels.
医学 -
2.
A surgical operation on a root canal (endodontic therapy), typically filling it with gutta-percha.
医学