tympanum 音标拼音: [t'ɪmpənəm]
n . 鼓膜;鼓室;中耳;振动膜
鼓膜;鼓室;中耳;振动膜
tympanum n 1 :
the main cavity of the ear ;
between the eardrum and the inner ear [
synonym : {
middle ear }, {
tympanic cavity },
{
tympanum }]
2 :
the membrane in the ear that vibrates to sound [
synonym :
{
eardrum }, {
tympanum }, {
tympanic membrane }, {
myringa }]
3 :
a large hemispherical brass or copper percussion instrument with a drumhead that can be tuned by adjusting the tension on it [
synonym : {
kettle }, {
kettledrum }, {
tympanum }, {
tympani },
{
timpani }]
Tympanum \
Tym "
pa *
num \,
n .;
pl .
E . {
Tympanums },
L . {
Tympana }.
[
L .,
a kettledrum ,
a drum or wheel in machines ,
the triangular area in a pediment ,
the panel of a door ,
Gr .
ty `
mpanon ,
ty `
panon ,
fr . ?
to strike ,
beat .
See {
Type },
and cf . {
Timbrel }.]
1 . (
Anat .)
(
a )
The ear drum ,
or middle ear .
Sometimes applied incorrectly to the tympanic membrane .
See {
Ear }.
(
b )
A chamber in the anterior part of the syrinx of birds .
[
1913 Webster ]
2 . (
Zool .)
One of the naked ,
inflatable air sacs on the neck of the prairie chicken and other species of grouse .
[
1913 Webster ]
3 . (
Arch .)
(
a )
The recessed face of a pediment within the frame made by the upper and lower cornices ,
being usually a triangular space or table .
(
b )
The space within an arch ,
and above a lintel or a subordinate arch ,
spanning the opening below the arch .
[
1913 Webster ]
4 . (
Mech .)
A drum -
shaped wheel with spirally curved partitions by which water is raised to the axis when the wheel revolves with the lower part of the circumference submerged , --
used for raising water ,
as for irrigation .
[
1913 Webster ]
90 Moby Thesaurus words for "
tympanum ":
Eustachian tube ,
allantoic membrane ,
amnion ,
amniotic sac ,
anvil ,
arachnoid membrane ,
auditory apparatus ,
auditory canal ,
auditory meatus ,
auditory nerve ,
auditory ossicles ,
auditory tube ,
auricle ,
basement membrane ,
basilar membrane ,
bongo drum ,
bony labyrinth ,
cauliflower ear ,
cochlea ,
conch ,
concha ,
conga ,
conjuctiva ,
drum ,
drumhead ,
drumskin ,
drumstick ,
ear ,
ear lobe ,
eardrum ,
endolymph ,
external ear ,
hammer ,
hymen ,
incus ,
inner ear ,
jazz stick ,
kettle ,
kettledrum ,
lobe ,
lobule ,
lug ,
maidenhead ,
malleus ,
mastoid process ,
membrana serosa ,
membrana tympana ,
membrane ,
membranophone ,
meninges ,
meninx ,
middle ear ,
neurilemma ,
organ of Corti ,
outer ear ,
oval window ,
pellicle ,
pericardium ,
perilymph ,
perineurium ,
pinna ,
pleura ,
round window ,
secondary eardrum ,
semicircular canals ,
serosa ,
shell ,
side drum ,
snare ,
snare drum ,
stapes ,
stirrup ,
tabor ,
taboret ,
tabret ,
tam -
tam ,
tambourine ,
tenor drum ,
timbrel ,
timpani ,
tom -
tom ,
troll -
drum ,
tymp stick ,
tympan ,
tympanic cavity ,
tympanic membrane ,
tympanon ,
velum ,
vestibule ,
war drum
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