peristome
n . 齿毛,口缘,开口部
齿毛,口缘,开口部
peristome n 1 : (
botany )
fringe of toothlike appendages surrounding the mouth of a moss capsule 2 :
region around the mouth in various invertebrates Peristome \
Per "
i *
stome \ (
p [-
e ]
r "[
i ^]*
st [=
o ]
m ),
n . [
Pref .
peri -
Gr .
sto `
ma ,
sto `
matos ,
mouth .]
1 . (
Bot .)
The fringe of teeth around the orifice of the capsule of mosses .
It consists of 4 ,
8 ,
16 ,
32 ,
or 64 teeth ,
and may be either single or double .
[
1913 Webster ]
2 . (
Zool .)
(
a )
The lip ,
or edge of the aperture ,
of a spiral shell .
(
b )
The membrane surrounding the mouth of an invertebrate animal .
[
1913 Webster ]
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