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Glossary of Electricity Terms
beginning with letter P
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pad Tweet Definition of pad Like Definition of pad on Facebook
  1. A flattened mass of anything soft, to sit or lie on.
  2. (context, US, slang) A bed.
  3. (colloquial) A place of residence.
  4. A cushion used as a saddle without a tree or frame.
  5. A soft, or small, cushion.
  6. A cushion-like thickening of the skin on the under side of the toes of animals; an animal's foot or paw.
  7. Any cushion-like part of the human body, especially the ends of the fingers.
  8. A stuffed guard or protection, especially one worn on the legs of horses to prevent bruising.
  9. A soft bag or cushion to relieve pressure, support a part, etc.
  10. A floating leaf of a water lily or similar plant.
  11. (cricket) a batsman's leg pad that protects it from damage when hit by the ball
  12. A kind of cushion for writing upon, or for blotting, especially one formed of many flat sheets of writing paper; now especially such a block of paper sheets as used to write on.
  13. A panel or strip of material designed to be sensitive to pressure or touch.
  14. A keypad.
  15. A flat surface or area from which a helicopter or other aircraft may land or be launched.
  16. An electrical extension cord with a multi-port socket one end: "trip cord"
  17. the effect produced by sustained lower reeds, reed notes in a musical piece, most common in blues music.
verb (padd, ing)
  1. (transitive) To stuff.
  2. (transitive) To furnish with a pad or padding.
  3. (transitive) To fill or lengthen (a story, one's importance, etc.).
  4. (transitive) To imbue uniformly with a mordant.
to pad cloth
  1. (context, transitive, cricket) to deliberately play the ball with the leg pad instead of the bat.
parallel Tweet Definition of parallel Like Definition of parallel on Facebook
  1. One of a set of parallel lines.
  2. A line of latitude.
The 31st passes through the center of my town.
  1. An arrangement of electrical components such that a current flows along two or more paths; see in parallel
verb (parallels, paralleling or parallelling (British only), paralleled or parallelled (British only))
  1. To construct something parallel to something else.
  2. Of a path etc: To be parallel to something else.
  3. Of a process etc: To be analogous to something else.
  4. To compare or liken something to something else.
  1. Of two or more (straight) lines, (flat) surfaces etc: equally, Equally distant from one another at all points.
The horizontal lines on my notebook paper are parallel.
  1. parallel to: Of one thing, relative to another: Equally distant from at all points.
The railway line runs to the road.
permeability Tweet Definition of permeability Like Definition of permeability on Facebook
  1. the property of being permeable
  2. the rate of flow of a fluid through a porous material
  3. (geology) a measure of the ability of a rock to transmit water
  4. (physics) a quantitative measure of the degree of magnetization of a material in the presence of an applied magnetic field (in terms of, for instance, Newtons per square Amperes in SI units).
(wikipedia, permeability (geology))      
permeance Tweet Definition of permeance Like Definition of permeance on Facebook
  1. a measure of the degree to which a material allows a fluid to permeate it
  1. (physics) the reciprocal of reluctance in a magnetic circuit; the analogue of conductance in an electrical circuit
permittivity Tweet Definition of permittivity Like Definition of permittivity on Facebook
noun (permittivities)
  1. (physics) A property of a dielectric medium that determines the forces that electric charges placed in the medium exert on each other.
Phantom Tweet Definition of Phantom Like Definition of Phantom on Facebook
proper noun 
  1. Nickname of the F-4B jet fighter flown by Marines in Vietnam
  2. The comic w:The Phantom, The Phantom, and the character in it by the same name
picofarad Tweet Definition of picofarad Like Definition of picofarad on Facebook
  1. One million millionth ( 10-12 ) of a farad, abbreviated as pF.
piezoelectricity Tweet Definition of piezoelectricity Like Definition of piezoelectricity on Facebook
  1. (physics) The ability of certain crystals to generate a voltage in response to applied mechanical stress.
pile Tweet Definition of pile Like Definition of pile on Facebook
  1. A hair; hence, the fiber of wool, cotton, and the like; also, the nap when thick or heavy, as of carpeting and velvet.
Velvet soft, or plush with shaggy pile. —Cowper
  1. A covering of hair or fur.
  2. A large stake, or piece of timber, steel section pointed and driven into the earth or drilled and cast reinforced concrete, as at the bottom of a river, or in a harbor where the ground is soft, for the support of a building, a pier, or other superstructure, or to form a cofferdam, etc.
  3. The head of an arrow or spear.
  4. (heraldry) One of the ordinaries or subordinaries having the form of a wedge, usually placed palewise, with the broadest end uppermost.
  5. A mass of things heaped together; a heap; as, a pile of stones; a pile of wood.
  6. A mass formed in layers; as, a pile of shot.
  7. A funeral pile; a pyre.
  8. A large building, or mass of buildings.
  9. A bundle of pieces of wrought iron to be worked over into bars or other shapes by rolling or hammering at a welding heat; a fagot.
  10. A vertical series of alternate disks of two dissimilar metals, as copper and zinc, laid up with disks of cloth or paper moistened with acid water between them, for producing a current of electricity; — commonly called Volta"s pile, voltaic pile, or galvanic pile.
  11. The reverse (or tails) of a coin. (Obs)
  12. A hemorrhoid (usually it is in plural)
plug Tweet Definition of plug Like Definition of plug on Facebook
  1. (context, electricity) A pronged connector, connecting device which fits into a mating socket.
I pushed the back into the electrical socket and the lamp began to glow again.
  1. Any piece of wood, metal, or other substance used to stop or fill a hole; a stopple.
Pull the out of the tub so it can drain.
  1. A flat oblong cake of pressed tobacco.
He preferred a of tobacco to loose chaw.
  1. (context, US, slang) A high, tapering silk hat.
  2. (context, US, slang) A worthless horse.
That sorry old is ready for the glue factory!
  1. (context, construction) A block of wood let into a wall to afford a hold for nails.
  2. A mention of a product (usually a book, film or play) in an interview, or an interview which features one or more of these.
During the interview, the author put in a for his latest novel.
  1. (Geology) A body of once molten rock that hardened in a volcanic vent. Usually round or oval in shape.
Pressure built beneath the in the caldera, eventually resulting in a catastrophic explosion of pyroclastic shrapnel and ash.
  1. (context, fishing) A type of lure consisting of a rigid, buoyant or semi-buoyant body and one or more hooks.
The fisherman cast the into a likely pool, hoping to catch a whopper.
verb (plug, g, ed)
  1. (transitive) To stop with a plug; to make tight by stopping a hole.
He attempted to the leaks with some caulk.
  1. (transitive) To mention a particular product or service.
The main guest on the show just kept plugging his latest movie: it got so tiresome.
  1. (intransitive) (informal) To persist or continue with something.
Keep plugging at the problem until you find a solution.
  1. (transitive) To shoot a bullet into something with a gun.
    • 1884, s:Author:H. Rider Haggard, H. Rider Haggard, s:The Witch's Head/Book II/Chapter II, The Witch's Head
    • :I am awfully glad that you kept your nerve and plugged him; it would have been better if you could have nailed him through the right shoulder, which would not have killed him...
plug-in Tweet Definition of plug-in Like Definition of plug-in on Facebook
noun (wikipedia, plugin)
  1. (computing) A computer program module or device that interacts with another to add a specific function, or to support a specific file format or device; a plugin.
  1. designed to be plugged into an electrical power outlet or circuit
plus Tweet Definition of plus Like Definition of plus on Facebook
noun (plural pluses or plusses)
  1. A positive quantity.
  2. An asset or useful addition.
He is a real to the team.
  1. (arithmetic) A plus sign: +.
  1. Being positive rather than negative or zero.
  • -2 = +4 ("minus 2 times minus 2 equals four")
    1. Positive, or involving advantage.
He is a factor.
  1. (physics) electrically, Electrically positive.
A battery has both a pole and a minus pole.
polar Tweet Definition of polar Like Definition of polar on Facebook
  1. of, relating to, measured from, or referred to a geographic pole (the North Pole or South Pole)
  2. of an orbit that passes over, or near, one of these poles
  1. (chemistry) having a dipole; ionic
  2. (mathematics) of a coordinate system, specifying the location of a point in a plane by using a radius and an angle
polarize Tweet Definition of polarize Like Definition of polarize on Facebook
verb (polariz, ing)
  1. (transitive, US) To cause to have a polarization.
  2. (transitive, US) To cause a group to be divided into extremes.
polarized Tweet Definition of polarized Like Definition of polarized on Facebook
  1. (past of, polarize)
  2. (alternative spelling of, polarised)
  1. Describing something that possesses a distinctive polarization.
  2. Describing a group or situation characterized by being at two (or more) extremes.
  3. (alternative spelling of, polarised)
positive Tweet Definition of positive Like Definition of positive on Facebook
  1. A thing capable of being affirmed; something real or actual.
  2. A favourable point or characteristic.
  3. Something having a value in physics, such as an electric charge.
  4. (grammar) An adjective or adverb in the degree.
  5. (context, photography) A image; one that displays true colors and shades, as opposed to a negative.
  1. Definitively laid down; explicitly stated; clearly expressed, precise, emphatic.
    • Bacon:
    • : Positive words, that he would not bear arms against King Edward"s son.
      1. Fully assured, confident; certain.
      I"m absolutely you've spelt that wrong.
      1. Overconfident, dogmatic.
    • Pope:
    • : Some , persisting fops we know, That, if once wrong, will needs be always so.
      1. (grammar) Describing the primary sense of an adjective or adverb; not comparative or superlative.
      "Better" is an irregular comparative of the form "good".
      1. Derived from an object by itself; not dependent on changing circumstances or relations; absolute.
      The idea of beauty is not , but depends on the different tastes of individuals.
      1. Wholly what is expressed; colloquially downright, entire, outright.
      Good lord, you've built up a arsenal of weaponry here.
      1. Characterised by the existence or presence of qualities or features, rather than by their absence.
      The box was not empty " I felt some substance within it.
      1. Characterised by the presence of features which support a hypothesis.
      The results of our experiment are .
      1. Characterised by affirmation, constructiveness, or influence for the better; favourable.
      He has a outlook on life.
      The first-night reviews were largely .
    • Swift:
    • : a voice in legislation.
      1. (context, chiefly, philosophy) actual, Actual, real, concrete.
    • Bacon:
    • : Positive good.
      1. (photography) Of a visual image, true to the original in light, shade and colour values.
      A photograph can be developed from a photographic negative.
      1. (physics) Having more protons than electrons.
      A cation is a positive ion as it has more protons than electrons.
      1. (slang) HIV positive.
potential difference Tweet Definition of potential difference Like Definition of potential difference on Facebook
  1. the difference in potential energy between two points in an electric field; the difference in charge between two points in an electrical circuit; voltage
potentiometer Tweet Definition of potentiometer Like Definition of potentiometer on Facebook
  1. (electronics) a user-adjustable variable resistor that functions as a voltage divider.
  2. (physics) an instrument that measures a voltage by opposing it with a precise fraction of a known voltage, and without drawing current from the unknown source.
power Tweet Definition of power Like Definition of power on Facebook
  1. Physical force or strength.
  2. Control and influence over another entity and its actions.
He exerted his upon his subordinates to obtain illicit, personal satisfaction.
The party has won thanks to the influence of its charismatic leader.
  1. (physics) A measure of the rate of doing work or transferring energy.
  2. (physics) A rate to magnify an optical image by a lens or mirror.
  3. (Biblical tradition) in Christian angelology, the fourth level of angels, ranked above archangels and below principality, principalities
  4. (mathematics) A product of equal factors. Notation and usage: xn, read as "x to the power of " or "x to the th power", denotes x × x × ... × x, in which x appears times, where is called the exponent; the definition is extended to non-integer and complex exponents.
  5. Electricity supply.
  6. A nation having a strong military and/or economy.
  7. (settheory) Cardinality.
  1. (transitive) To provide power for (a mechanical or electronic device).
powerhouse Tweet Definition of powerhouse Like Definition of powerhouse on Facebook
  1. Any source of power, energy or strength.
The company has been a in its industry for many years.
She's a of ideas.
power line Tweet Definition of power line Like Definition of power line on Facebook
  1. An electrical wire, cable or conduit, suspended in air by utility poles or transmission towers, or buried underground, used for the carrying of electricity either from a power source such as a generating station to a substation, or from a substation to a building such as a plant, commercial building or a home.
power station Tweet Definition of power station Like Definition of power station on Facebook
  1. an industrial complex where electricity is produced.
pressure Tweet Definition of pressure Like Definition of pressure on Facebook
noun (countable and uncountable; plural: pressures)
  1. (physics) The amount of force that is applied over a given area divided by the size of this area.
  • SI: pascal (Pa) (1 pascal equals 1 newton per square metre)
  • Others: bar (1 bar equals 100000 pascals), barye (Ba) (1 barye equals 0.1 pascal), pounds per square inch (psi, lbf/in2, lb/in2), torr, mmHg, atmosphere (atm)
    1. mental strain caused by one's own or others' expectations on one's own performance
  • She has been under lately because her boss expects her to get the job done two weeks early.
    Synonyms - under the pump, under the gun
    primary Tweet Definition of primary Like Definition of primary on Facebook
    noun (primar, ies)
    1. A preliminary election to select a political candidate.
    2. The first year of grade school.
    3. A base or fundamental component; something that is irreducible.
    4. The most massive component of a gravitationally bound system.
    verb (primaries, primarying, primaried)
    1. To take part in a primary election
    1. The first in a group or series.
    Children attend school, teenagers attend secondary school.
    1. That which is placed ahead of others.
    Preferred stock has claim on dividends, ahead of common stock.
    pulse Tweet Definition of pulse Like Definition of pulse on Facebook
    1. Any annual legume yielding from 1 to 12 grains or seeds of variable size, shape and colour within a pod, and used as food for humans or animals.
    2. (physiology) A normally regular beat felt when arteries are depressed, caused by the pumping action of the heart.
    3. A beat, throb.
    4. (music) A periodically recurring short stimulus, perceived as points in time. (DeLone? et. al. (Eds.), 1975, chap. 3) Often the stimuli are defined as identical (Cooper & Meyer, 1960). (rfc, music definition needs rewritten because the current one is copyrighted)
    push-button Tweet Definition of push-button Like Definition of push-button on Facebook
    1. an electrical switch activated by pressing a button
    1. that can be initiated or activated at the push of a button
    push-button warfare
    pyroelectric Tweet Definition of pyroelectric Like Definition of pyroelectric on Facebook
    1. a pyroelectric substance
    1. of, relating to, or exhibiting pyroelectricity
    pyroelectricity Tweet Definition of pyroelectricity Like Definition of pyroelectricity on Facebook
    1. (physics) the generation of electric charge as a result of a change in temperature

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