electricity 音标拼音: [ɪl
, ɛktr'ɪsəti]
n . 电,电流,电学,热情,电荷
电,电流,电学,热情,电荷
electricity 电; 电学
ELECTR electricity n 1 :
a physical phenomenon associated with stationary or moving electrons and protons 2 :
energy made available by the flow of electric charge through a conductor ; "
they built a car that runs on electricity "
[
synonym : {
electricity }, {
electrical energy }]
3 :
keen and shared excitement ; "
the stage crackled with electricity whenever she was on it "
Electricity \
E `
lec *
tric "
i *
ty \ ([=
e ]`
l [
e ^]
k *
tr [
i ^]
s "[
i ^]*
t [
y ^]),
n .;
pl . {
Electricities } ([=
e ]`
l [
e ^]
k *
tr [
i ^]
s "[
i ^]*
t [
i ^]
z ).
[
Cf .
F . ['
e ]
lectricit ['
e ].
See {
Electric }.]
1 . (
Physics )
a property of certain of the fundamental particles of which matter is composed ,
called also {
electric charge },
and being of two types ,
designated positive and negative ;
the property of electric charge on a particle or physical body creates a force field which affects other particles or bodies possessing electric charge ;
positive charges create a repulsive force between them ,
and negative charges also create a repulsive force .
A positively charged body and a negatively charged body will create an attractive force between them .
The unit of electrical charge is the {
coulomb },
and the intensity of the force field at any point is measured in {
volts }.
[
PJC ]
2 .
any of several phenomena associated with the accumulation or movement of electrically charged particles within material bodies ,
classified as {
static electricity }
and {
electric current }.
Static electricity is often observed in everyday life ,
when it causes certain materials to cling together ;
when sufficient static charge is accumulated ,
an electric current may pass through the air between two charged bodies ,
and is observed as a visible spark ;
when the spark passes from a human body to another object it may be felt as a mild to strong painful sensation .
Electricity in the form of electric current is put to many practical uses in electrical and electronic devices .
Lightning is also known to be a form of electric current passing between clouds and the ground ,
or between two clouds .
Electric currents may produce heat ,
light ,
concussion ,
and often chemical changes when passed between objects or through any imperfectly conducting substance or space .
Accumulation of electrical charge or generation of a voltage differnce between two parts of a complex object may be caused by any of a variety of disturbances of molecular equilibrium ,
whether from a chemical ,
physical ,
or mechanical ,
cause .
Electric current in metals and most other solid coductors is carried by the movement of electrons from one part of the metal to another .
In ionic solutions and in semiconductors ,
other types of movement of charged particles may be responsible for the observed electrical current .
[
PJC ]
Note :
Electricity is manifested under following different forms : (
a )
{
Statical electricity },
called also {
Frictional electricity }
or {
Common electricity },
electricity in the condition of a stationary charge ,
in which the disturbance is produced by friction ,
as of glass ,
amber ,
etc .,
or by induction . (
b )
{
Dynamical electricity },
called also {
Voltaic electricity },
electricity in motion ,
or as a current produced by chemical decomposition ,
as by means of a voltaic battery ,
or by mechanical action ,
as by dynamo -
electric machines . (
c )
{
Thermoelectricity },
in which the disturbing cause is heat (
attended possibly with some chemical action ).
It is developed by uniting two pieces of unlike metals in a bar ,
and then heating the bar unequally . (
d )
{
Atmospheric electricity },
any condition of electrical disturbance in the atmosphere or clouds ,
due to some or all of the above mentioned causes . (
e )
{
Magnetic electricity },
electricity developed by the action of magnets . (
f )
{
Positive electricity },
the electricity that appears at the positive pole or anode of a battery ,
or that is produced by friction of glass ; --
called also {
vitreous electricity }. (
g )
{
Negative electricity },
the electricity that appears at the negative pole or cathode ,
or is produced by the friction of resinous substance ; --
called also resinous electricity . (
h )
{
Organic electricity },
that which is developed in organic structures ,
either animal or vegetable ,
the phrase animal electricity being much more common .
[
1913 Webster ]
3 .
The science which studies the phenomena and laws of electricity ;
electrical science .
[
1913 Webster ]
4 .
Fig .:
excitement ,
anticipation ,
or emotional tension ,
usually caused by the occurrence or expectation of something unusual or important .
84 Moby Thesaurus words for "
electricity ":
TelAutography ,
Teletype ,
Teletype network ,
Teletyping ,
antelope ,
ardor ,
arrow ,
benzine ,
blue darter ,
blue streak ,
cannonball ,
closed -
circuit telegraphy ,
coal oil ,
code ,
courser ,
dart ,
duplex telegraphy ,
eagle ,
energy ,
excitement ,
express train ,
facsimile telegraph ,
fervency ,
flash ,
gas ,
gasoline ,
gazelle ,
greased lightning ,
greyhound ,
hare ,
illuminant ,
illuminating gas ,
intensity ,
interrupter ,
jet plane ,
kerosene ,
key ,
light ,
light source ,
lightning ,
luminant ,
mercury ,
multiplex telegraphy ,
news ticker ,
oil ,
paraffin ,
petrol ,
petroleum ,
quadruplex telegraphy ,
quicksilver ,
railroad telegraphy ,
receiver ,
rocket ,
scared rabbit ,
sender ,
shot ,
simplex telegraphy ,
single -
current telegraphy ,
sounder ,
stock ticker ,
streak ,
streak of lightning ,
striped snake ,
submarine telegraphy ,
swallow ,
telegraphics ,
telegraphy ,
teleprinter ,
teletypewriter ,
teletypewriting ,
telex ,
tenseness ,
tension ,
thought ,
thunderbolt ,
ticker ,
torrent ,
transmitter ,
typotelegraph ,
typotelegraphy ,
verve ,
vibrations ,
wind ,
wire service
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:
Electricity - Wikipedia Electricity is the set of physical phenomena associated with the presence and motion of matter possessing an electric charge Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as described by Maxwell's equations
Electricity | Definition, Facts, Types | Britannica electricity, phenomenon associated with stationary or moving electric charges Electric charge is a fundamental property of matter and is borne by elementary particles In electricity the particle involved is the electron, which carries a charge designated, by convention, as negative
Explainer: What is Electricity? - ThoughtCo Electricity is the flow of electrons, which is a basic and widely used form of energy Most electricity is generated by converting primary energy sources like coal, natural gas, and nuclear power Generators convert mechanical energy into electrical energy using a relationship between magnetism and electricity What Is Electricity?
Electricity explained - U. S. Energy Information . . . Electricity is the flow of electrical power or charge Electricity is both a basic part of nature and one of the most widely used forms of energy
What is Electricity? - SparkFun Learn Electricity is a natural phenomenon that occurs throughout nature and takes many different forms In this tutorial we'll focus on current electricity: the stuff that powers our electronic gadgets
How Electricity Works - HowStuffWorks Electricity surrounds us and can be used thousands of different ways Learn about the basics of electricity, from generators and electrical circuits to voltage and currents
What is Electricity and How Electricity is Generated and Used Electricity Definition: Electricity is the flow of electrons between two points, created by the imbalance in electron and proton numbers Generation Methods: Electricity is generated through electromechanical, electrochemical, and solid-state processes