dict.org

The DICT Development Group


Search for:
Search type:
Database:

Database copyright information
Server information


2 definitions found
 for Positive electricity
From The Collaborative International Dictionary of English v.0.48 :

  Positive \Pos"i*tive\, a. [OE. positif, F. positif, L.
     positivus. See Position.]
     1. Having a real position, existence, or energy; existing in
        fact; real; actual; -- opposed to negative. "Positive
        good." --Bacon.
        [1913 Webster]
  
     2. Derived from an object by itself; not dependent on
        changing circumstances or relations; absolute; -- opposed
        to relative; as, the idea of beauty is not positive, but
        depends on the different tastes individuals.
        [1913 Webster]
  
     3. Definitely laid down; explicitly stated; clearly
        expressed; -- opposed to implied; as, a positive
        declaration or promise.
        [1913 Webster]
  
              Positive words, that he would not bear arms against
              King Edward's son.                    --Bacon.
        [1913 Webster]
  
     4. Hence: Not admitting of any doubt, condition,
        qualification, or discretion; not dependent on
        circumstances or probabilities; not speculative;
        compelling assent or obedience; peremptory; indisputable;
        decisive; as, positive instructions; positive truth;
        positive proof. "'T is positive 'gainst all exceptions."
        --Shak.
        [1913 Webster]
  
     5. Prescribed by express enactment or institution; settled by
        arbitrary appointment; said of laws.
        [1913 Webster]
  
              In laws, that which is natural bindeth universally;
              that which is positive, not so.       --Hooker.
        [1913 Webster]
  
     6. Fully assured; confident; certain; sometimes,
        overconfident; dogmatic; overbearing; -- said of persons.
        [1913 Webster]
  
              Some positive, persisting fops we know,
              That, if once wrong, will needs be always. --Pope.
        [1913 Webster]
  
     7. Having the power of direct action or influence; as, a
        positive voice in legislation. --Swift.
        [1913 Webster]
  
     8. (Photog.) Corresponding with the original in respect to
        the position of lights and shades, instead of having the
        lights and shades reversed; as, a positive picture.
        [1913 Webster]
  
     9. (Chem.)
        (a) Electro-positive.
        (b) Hence, basic; metallic; not acid; -- opposed to
            negative, and said of metals, bases, and basic
            radicals.
            [1913 Webster]
  
     10. (Mach. & Mech.)
         (a) Designating, or pertaining to, a motion or device in
             which the movement derived from a driver, or the grip
             or hold of a restraining piece, is communicated
             through an unyielding intermediate piece or pieces;
             as, a claw clutch is a positive clutch, while a
             friction clutch is not.
         (b) Designating, or pertaining to, a device giving a
             to-and-fro motion; as, a positive dobby.
             [Webster 1913 Suppl.]
  
     11. (Vehicles) Designating a method of steering or turning in
         which the steering wheels move so that they describe
         concentric arcs in making a turn, to insure freedom from
         side slip or harmful resistance.
         [Webster 1913 Suppl.]
  
     Positive crystals (Opt.), a doubly refracting crystal in
        which the index of refraction for the extraordinary ray is
        greater than for the ordinary ray, and the former is
        refracted nearer to the axis than the latter, as quartz
        and ice; -- opposed to negative crystal, or one in which
        this characteristic is reversed, as Iceland spar,
        tourmaline, etc.
  
     Positive degree (Gram.), that state of an adjective or
        adverb which denotes simple quality, without comparison or
        relation to increase or diminution; as, wise, noble.
  
     Positive electricity (Elec), the kind of electricity which
        is developed when glass is rubbed with silk, or which
        appears at that pole of a voltaic battery attached to the
        plate that is not attacked by the exciting liquid; --
        formerly called vitreous electricity; -- opposed to
        negative electricity.
  
     Positive eyepiece. See under Eyepiece.
  
     Positive law. See Municipal law, under Law.
  
     Positive motion (Mach.), motion which is derived from a
        driver through unyielding intermediate pieces, or by
        direct contact, and not through elastic connections, nor
        by means of friction, gravity, etc.; definite motion.
  
     Positive philosophy. See Positivism.
  
     Positive pole.
         (a) (Elec.) The pole of a battery or pile which yields
             positive or vitreous electricity; -- opposed to
             negative pole.
         (b) (Magnetism) The north pole. [R.]
  
     Positive quantity (Alg.), an affirmative quantity, or one
        affected by the sign plus [+].
  
     Positive rotation (Mech.), left-handed rotation.
  
     Positive sign (Math.), the sign [+] denoting plus, or more,
        or addition.
        [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 :

  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.

Contact=webmaster@dict.org Specification=RFC 2229