cementum
牙骨质
牙骨质
cementum n 1 :
a specialized bony substance covering the root of a tooth [
synonym : {
cementum }, {
cement }]
Cement \
Ce *
ment "\ (
s [
e ^]*
m [
e ^]
nt "
or s [
e ^]
m "[
e ^]
nt ),
n . [
OF .
cement ,
ciment ,
F .
ciment ,
fr .
L .
caementum a rough ,
unhewn stone ,
pieces or chips of marble ,
from which mortar was made ,
contr .
fr .
caedimentum ,
fr .
caedere to cut ,
prob .
akin to scindere to cleave ,
and to E .
shed ,
v .
t .]
1 .
Any substance used for making bodies adhere to each other ,
as mortar ,
glue ,
etc .
[
1913 Webster ]
2 .
A kind of calcined limestone ,
or a calcined mixture of clay and lime ,
for making mortar which will harden under water .
[
1913 Webster ]
3 .
The powder used in cementation .
See {
Cementation },
n .,
2 .
[
1913 Webster ]
4 .
Bond of union ;
that which unites firmly ,
as persons in friendship ,
or men in society . "
The cement of our love ."
[
1913 Webster ]
5 . (
Anat .)
The layer of bone investing the root and neck of a tooth ; --
called also {
cementum }.
[
1913 Webster ]
{
Hydraulic cement }.
See under {
Hydraulic }.
[
1913 Webster ]
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