friction 音标拼音: [fr'ɪkʃən]
n .
U 摩擦,摩擦力;不和,冲突
U 摩擦,摩擦力;不和,冲突
friction 摩擦
friction n 1 :
a state of conflict between persons [
synonym : {
clash },
{
friction }]
2 :
the resistance encountered when one body is moved in contact with another [
synonym : {
friction }, {
rubbing }]
3 :
effort expended in moving one object over another with pressure [
synonym : {
friction }, {
detrition }, {
rubbing }]
Friction \
Fric "
tion \,
n . [
L .
frictio ,
fr .
fricare ,
frictum ,
to rub :
cf .
F .
friction .
See {
Fray }
to rub ,
arid cf .
{
Dentifrice }.]
1 .
The act of rubbing the surface of one body against that of another ;
attrition ;
in hygiene ,
the act of rubbing the body with the hand ,
with flannel ,
or with a brush etc .,
to excite the skin to healthy action .
[
1913 Webster ]
2 . (
Mech .)
The resistance which a body meets with from the surface on which it moves .
It may be resistance to sliding motion ,
or to rolling motion .
[
1913 Webster ]
3 .
A clashing between two persons or parties in opinions or work ;
a disagreement tending to prevent or retard progress .
[
1913 Webster ]
{
Angle of friction } (
Mech .),
the angle which a plane onwhich a body is lying makes with a horizontal plane ,
when the hody is just ready to slide dewn the plane .
Note :
This angle varies for different bodies ,
and for planes of different materials .
{
Anti -
friction wheels } (
Mach .),
wheels turning freely on small pivots ,
and sustaining ,
at the angle formed by their circumferences ,
the pivot or journal of a revolving shaft ,
to relieve it of friction ; --
called also {
friction wheels }.
{
Friction balls },
or {
Friction rollers },
balls or rollers placed so as to receive the pressure or weight of bodies in motion ,
and relieve friction ,
as in the hub of a bicycle wheel .
{
Friction brake } (
Mach .),
a form of dynamometer for measuring the power a motor exerts .
A clamp around the revolving shaft or fly wheel of the motor resists the motion by its friction ,
the work thus absorbed being ascertained by observing the force required to keep the clamp from revolving with the shaft ;
a Prony brake .
{
Friction chocks },
brakes attached to the common standing garrison carriages of guns ,
so as to raise the trucks or wheels off the platform when the gun begins to recoil ,
and prevent its running back . --
Earrow .
{
Friction clutch }, {
Friction coupling },
an engaging and disengaging gear for revolving shafts ,
pulleys ,
etc .,
acting by friction ;
esp .:
(
a )
A device in which a piece on one shaft or pulley is so forcibly pressed against a piece on another shaft that the two will revolve together ;
as ,
in the illustration ,
the cone a on one shaft ,
when thrust forcibly into the corresponding hollow cone b on the other shaft ,
compels the shafts to rotate together ,
by the hold the friction of the conical surfaces gives .
(
b )
A toothed clutch ,
one member of which ,
instead of being made fast on its shaft ,
is held by friction and can turn ,
by slipping ,
under excessive strain or in starting .
{
Friction drop hammer },
one in which the hammer is raised for striking by the friction of revolving rollers which nip the hammer rod .
{
Friction gear }.
See {
Frictional gearing },
under {
Frictional }.
{
Friction machine },
an electrical machine ,
generating electricity by friction .
{
Friction meter },
an instrument for measuring friction ,
as in testing lubricants .
{
Friction powder }, {
Friction composition },
a composition of chlorate of potassium ,
antimony ,
sulphide ,
etc ,
which readily ignites by friction .
{
Friction primer }, {
Friction tube },
a tube used for firing cannon by means of the friction of a roughened wire in the friction powder or composition with which the tube is filled .
{
Friction wheel } (
Mach .),
one of the wheels in frictional gearing .
See under {
Frictional }.
[
1913 Webster ]
114 Moby Thesaurus words for "
friction ":
Discordia ,
Eris ,
abrading ,
abrasion ,
animosity ,
antagonism ,
antipathy ,
argument ,
attrition ,
backlash ,
bad blood ,
belligerence ,
bickering ,
caressing ,
chafing ,
clash ,
clashing ,
collision ,
competition ,
conflict ,
confutation ,
contention ,
contradiction ,
contraposition ,
contrariety ,
contrariness ,
controversy ,
counteraction ,
counterposition ,
counterworking ,
crankiness ,
cross -
purposes ,
crotchetiness ,
despitefulness ,
disaccord ,
disaffinity ,
disagreement ,
discord ,
discordance ,
discordancy ,
disharmony ,
dispute ,
dissension ,
dissent ,
enmity ,
erosion ,
feeling ,
fingering ,
fractiousness ,
fretting ,
fricative ,
frictional ,
frottage ,
grating ,
handling ,
hate ,
hatred ,
hostility ,
ill feeling ,
ill will ,
incompatibility ,
incompatibleness ,
inharmoniousness ,
inharmony ,
inimicalness ,
interference ,
jangle ,
jar ,
kick ,
malevolence ,
malice ,
malignity ,
manipulation ,
mischief ,
negativeness ,
nonconformity ,
noncooperation ,
obstinacy ,
open conflict ,
opposition ,
opposure ,
oppugnance ,
oppugnancy ,
palpation ,
perverseness ,
petting ,
pressure ,
quarrelsomeness ,
reaction ,
recalcitrance ,
recoil ,
refractoriness ,
renitency ,
repercussion ,
repugnance ,
resistance ,
revolt ,
rivalry ,
rub ,
rubbing ,
scraping ,
spite ,
spitefulness ,
strained relations ,
strife ,
stroking ,
swimming upstream ,
tension ,
touching ,
uncooperativeness ,
unharmoniousness ,
unpleasantness ,
vying ,
wrangling
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