undulation
n . 波动,弯曲,起伏
波动,弯曲,起伏
undulation n 1 :
an undulating curve [
synonym : {
wave }, {
undulation }]
2 :
wavelike motion ;
a gentle rising and falling in the manner of waves 3 : (
physics )
a movement up and down or back and forth [
synonym :
{
wave }, {
undulation }]
Undulation \
Un `
du *
la "
tion \,
n . [
Cf .
F .
ondulation .]
1 .
The act of undulating ;
a waving motion or vibration ;
as ,
the undulations of a fluid ,
of water ,
or of air ;
the undulations of sound .
[
1913 Webster ]
2 .
A wavy appearance or outline ;
waviness . --
Evelyn .
[
1913 Webster ]
3 . (
Mus .)
(
a )
The tremulous tone produced by a peculiar pressure of the finger on a string ,
as of a violin .
(
b )
The pulsation caused by the vibrating together of two tones not quite in unison ; --
called also {
beat }.
[
1913 Webster ]
4 . (
Physics )
A motion to and fro ,
up and down ,
or from side to side ,
in any fluid or elastic medium ,
propagated continuously among its particles ,
but with no translation of the particles themselves in the direction of the propagation of the wave ;
a wave motion ;
a vibration .
[
1913 Webster ]
安装中文字典英文字典查询工具! 中文字典英文字典工具:
复制到剪贴板
英文字典中文字典相关资料:
WhatsApp Web