Copy of `Princeton University - WordNet - a lexical database for the English language`

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Princeton University - WordNet - a lexical database for the English language Category: General Date & country: 27/01/2008, USA Words: 85192

electrolytic
adjective of or relating to or containing an electrolyte

electrolytic cell
noun a cell containing an electrolyte in which an applied voltage causes a reaction to occur that would not occur otherwise (such as the breakdown of water into hydrogen and oxygen)

electromagnet
noun a temporary magnet made by coiling wire around an iron core; when current flows in the coil the iron becomes a magnet

electromagnetic
adjective pertaining to or exhibiting magnetism produced by electric charge in motion; `electromagnetic energy`

electromagnetic delay line
noun a delay line based on the time of propagation of electromagnetic waves

electromagnetic intrusion
noun the deliberate insertion of electromagnetic energy into transmission paths with the objective of confusing or deceiving operators

electromagnetic interaction
noun an interaction between charged elementary particles that is intermediate in strength between the strong and weak interactions; mediated by photons

electromagnetic radiation
electromagnetic wave noun radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge

electromagnetic spectrum
noun the entire frequency range of electromagnetic waves

electromagnetic unit
emu noun any of various systems of units for measuring electricity and magnetism

electromagnetism
electromagnetics noun the branch of physics concerned with electromagnetic phenomena

electromechanical
adjective of or relating to or involving an electrically operated mechanical device

electromechanical device
noun a mechanical device that is operated by electricity

electrometer
noun meter to measure electrostatic voltage differences; draws no current from the source

electromotive
adjective concerned with or producing electric current

electromotive force
emf noun the rate at which energy is drawn from a source that produces a flow of electricity in a circuit; expressed in volts

electromotive series
electromotive force series noun a serial arrangement of metallic elements or ions according to their electrode potentials determined under specified conditions; the order shows the tendency of one metal to reduce the ions of any other metal below it in the series

electromyogram
EMG noun a graphical record of electric currents associated with muscle contractions

electromyograph
noun a medical instrument that records the electrical waves associated with the activity of skeletal muscles

electromyography
noun diagnosis of neuromuscular disorders with the use of an electromyograph

electron
negatron noun an elementary particle with negative charge

electron accelerator
noun collider that consists of an accelerator that collides electrons and positrons

electron beam
noun a group of nearly parallel lines of electromagnetic radiation

electron gun
noun the electrode that is the source of electrons in a cathode-ray tube or electron microscope; consists of a cathode that emits a stream of electrons and the electrostatic or electromagnetic apparatus that focuses it

electron lens
noun electronic equipment that uses a magnetic or electric field in order to focus a beam of electrons

electron microscopic
adjective of or relating to or involving an electron microscope

electron microscope
noun a microscope that is similar in purpose to a light microscope but achieves much greater resolving power by using a parallel beam of electrons to illuminate the object instead of a beam of light

electron microscopy
noun microscopy with the use of electron microscopes

electron multiplier
noun a vacuum tube that amplifies a flow of electrons

electron optics
noun the branch of electronics that deals with beams of electrons and their focusing and deflection by magnetic fields

electron orbit
noun the path of an electron around the nucleus of an atom

electron shell
noun a grouping of electrons surrounding the nucleus of an atom; `the chemical properties of an atom are determined by the outermost electron shell`

electron spin resonance
ESR noun microwave spectroscopy in which there is resonant absorption of radiation by a paramagnet

electron volt
eV noun a unit of energy equal to the work done by an electron accelerated through a potential difference of 1 volt

electronegative
adjective having a negative electric charge; `electrons are negative`

electronegativity
noun (chemistry) the tendency of an atom or radical to attract electrons in the formation of an ionic bond

electroneutral
adjective having no net electric charge; not electrified

electronic
adjective of or relating to electronics; concerned with or using devices that operate on principles governing the behavior of electrons; `electronic devices`

electronic balance
noun balance that generates a current proportional to displacement of pan

electronic communication
noun communication by computer

electronic converter
noun (telecommunication) converter for converting a signal from one frequency to another

electronic counter-countermeasures
ECCM noun electronic warfare undertaken to insure effective friendly use of the electromagnetic spectrum in spite of the enemy`s use of electronic warfare

electronic countermeasures
ECM noun electronic warfare undertaken to prevent or reduce an enemy`s effective use of the electromagnetic spectrum

electronic database
on-line database noun (computer science) a database that can be accessed by computers

electronic data processing
EDP noun automatic data processing by electronic means without the use of tabulating cards or punched tapes

electronic deception
noun the deliberate use of electromagnetic energy in a manner intended to convey misleading information

electronic device
noun a device that accomplishes its purpose electronically

electronic equipment
noun equipment that involves the controlled conduction of electrons (especially in a gas or vacuum or semiconductor)

electronic fetal monitor
electronic foetal monitor noun an electronic monitor that monitors fetal heartbeat and the mother`s uterine contractions during childbirth

electronic instrument
noun a musical instrument that generates sounds electronically

electronic mail
e-mail noun (computer science) a system of world-wide electronic communication in which a computer user can compose a message at one terminal that is generated at the recipient`s terminal when he logs in

electronic network
noun (electronics) a system of interconnected electronic components or circuits

electronic reconnaissance
noun the detection and identification and evaluation and location of foreign electromagnetic radiations (other than radioactive)

electronic signal
noun a signal generated by electronic means

electronic surveillance
noun surveillance by electronic means (e.g. television)

electronic text
noun text that is in a form that computer can store or display on a computer screen

electronic voltmeter
noun a voltmeter whose sensitivity is increased by amplification

electronic warfare
EW noun military action involving the use of electromagnetic energy to determine or exploit or reduce or prevent hostile use of the electromagnetic spectrum

electronic warfare-support measures
ESM noun electronic warfare undertaken under direct control of an operational commander to locate sources of radiated electromagnetic energy for the purpose of immediate threat recognition

electronically
adverb by electronic means; `the door opens electronically`

electronics
noun the branch of physics that deals with the emission and effects of electrons and with the use of electronic devices

electronics company
noun a company that makes and sells electronic instruments

electronics industry
noun a manufacturer of electronic products

electronics intelligence
ELINT noun intelligence derived from electromagnetic radiations from foreign sources (other than radioactive sources)

electrophoresis
cataphoresis noun the motion of charged particles in a colloid under the influence of an electric field; particles with a positive charge go to the cathode and negative to the anode

electrophoretic
cataphoretic adjective of or relating to electrophoresis

Electrophoridae
family Electrophoridae noun small family comprising the electric eels

Electrophorus
genus Electrophorus noun type genus of the family Electrophoridae; electric eels

electroplate
noun any artifact that has been plated with a thin coat of metal by electrolysis

electroplater
noun a plater who uses electrolysis

electropositive
adjective having a positive electric charge; `protons are positive`

electroretinogram
noun a graphical recording of the electrical activity of the retina that results when light is flashed into the eye

electroscope
noun measuring instrument that detects electric charge; two gold leaves diverge owing to repulsion of charges with like sign

electrosleep
noun unconsciousness brought about by the passage of a low voltage electric current through the brain

electrostatic
static adjective concerned with or producing or caused by static electricity; `an electrostatic generator produces high-voltage static electricity`

electrostatic charge
noun the electric charge at rest on the surface of an insulated body (which establishes and adjacent electrostatic field)

electrostatic field
noun electric field associated with static electric charges

electrostatic generator
electrostatic machine noun electrical device that produces a high voltage by building up a charge of static electricity

electrostatic printer
noun a printer that uses an electric charge to deposit toner on paper

electrostatic unit
noun any of various units of electricity based on forces of interaction between electric charges

electrostatically
adverb in an electrostatic manner; `the dust adhered electrostatically to the surface`

electrostatics
noun the branch of physics that deals with static electricity

electrosurgery
noun surgery performed with electrical devices (as in electrocautery)

electrotherapist
noun someone who specializes in the treatment of disease by electricity

electrotherapy
galvanism noun the therapeutic application of electricity to the body (as in the treatment of various forms of paralysis)

electrum
noun an alloy of gold and silver

elegance
noun a refined quality of gracefulness and good taste; `she conveys an aura of elegance and gentility`

elegant
graceful adjective suggesting taste, ease, and wealth

elegant brodiaea
Brodiaea elegans noun brodiaea having an umbel of violet or blue-violet flowers atop a leafless stalk; northern Oregon to southern California

elegant Habenaria
Habenaria elegans noun slender inland rein orchid similar to coastal rein orchid but with pale greenish-yellow flowers

elegantly
adverb with elegance; in a tastefully elegant manner; `the room was elegantly decorated`

elegiac
adjective expressing sorrow often for something past; `an elegiac lament for youthful ideals`

elegiac stanza
noun a quatrain in iambic pentameter with abab rhyme scheme

elegist
noun the author of a mournful poem lamenting the dead

elegize
elegise verb compose an elegy

elegy
lament noun a mournful poem; a lament for the dead

element
noun the most favorable environment for a plant or animal; `water is the element of fishes`

element of a cone
noun a straight line joining the apex and a point on the base

element of a cylinder
noun a straight line running the length of the cylinder

elemental
adjective relating to or being an element; `elemental sulphur`