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3 definitions found
 for Prime mover
From The Collaborative International Dictionary of English v.0.48 :

  Prime \Prime\, a. [F., fr. L. primus first, a superl.
     corresponding to the compar. prior former. See Prior, a.,
     Foremost, Former, and cf. Prim, a., Primary,
     1. First in order of time; original; primeval; primitive;
        primary. "Prime forests." --Tennyson.
        [1913 Webster]
              She was not the prime cause, but I myself. --Milton.
        [1913 Webster]
     Note: In this sense the word is nearly superseded by
           primitive, except in the phrase prime cost.
           [1913 Webster]
     2. First in rank, degree, dignity, authority, or importance;
        as, prime minister. "Prime virtues." --Dryden.
        [1913 Webster]
     3. First in excellence; of highest quality; as, prime wheat;
        a prime quality of cloth.
        [1913 Webster]
     4. Early; blooming; being in the first stage. [Poetic]
        [1913 Webster]
              His starry helm, unbuckled, showed him prime
              In manhood where youth ended.         --Milton.
        [1913 Webster]
     5. Lecherous; lustful; lewd. [Obs.] --Shak.
        [1913 Webster]
     6. Marked or distinguished by a mark (') called a prime mark.
     Note: In this dictionary the same typographic mark is used to
           indicate a weak accent in headwords, and minutes of a
           degree in angle measurements.
           [1913 Webster]
     7. (Math.)
        (a) Divisible by no number except itself or unity; as, 7
            is a prime number.
        (b) Having no common factor; -- used with to; as, 12 is
            prime to 25.
            [Webster 1913 Suppl.]
     Prime and ultimate ratio. (Math.). See Ultimate.
     Prime conductor. (Elec.) See under Conductor.
     Prime factor (Arith.), a factor which is a prime number.
     Prime figure (Geom.), a figure which can not be divided
        into any other figure more simple than itself, as a
        triangle, a pyramid, etc.
     Prime meridian (Astron.), the meridian from which longitude
        is reckoned, as the meridian of Greenwich or Washington.
     Prime minister, the responsible head of a ministry or
        executive government; applied particularly to that of
     Prime mover. (Mech.)
        (a) A natural agency applied by man to the production of
            power. Especially: Muscular force; the weight and
            motion of fluids, as water and air; heat obtained by
            chemical combination, and applied to produce changes
            in the volume and pressure of steam, air, or other
            fluids; and electricity, obtained by chemical action,
            and applied to produce alternation of magnetic force.
        (b) An engine, or machine, the object of which is to
            receive and modify force and motion as supplied by
            some natural source, and apply them to drive other
            machines; as a water wheel, a water-pressure engine, a
            steam engine, a hot-air engine, etc.
        (c) Fig.: The original or the most effective force in any
            undertaking or work; as, Clarkson was the prime mover
            in English antislavery agitation.
     Prime number (Arith.), a number which is exactly divisible
        by no number except itself or unity, as 5, 7, 11.
     Prime vertical (Astron.), the vertical circle which passes
        through the east and west points of the horizon.
     Prime-vertical dial, a dial in which the shadow is
        projected on the plane of the prime vertical.
     Prime-vertical transit instrument, a transit instrument the
        telescope of which revolves in the plane of the prime
        vertical, -- used for observing the transit of stars over
        this circle.
        [1913 Webster]

From WordNet (r) 3.0 (2006) :

  prime mover
      n 1: an agent that is the cause of all things but does not
           itself have a cause; "God is the first cause" [syn: first
           cause, prime mover, primum mobile]

From Moby Thesaurus II by Grady Ward, 1.0 :

  93 Moby Thesaurus words for "prime mover":
     abettor, actor, actuator, agent, ancestors, animator, apprentice,
     architect, artificer, artist, author, begetter, beginner, builder,
     cajoler, catalyst, causer, coax, coaxer, conceiver, constructor,
     craftsman, creator, designer, deviser, discoverer, doer, effector,
     encourager, energizer, engenderer, engineer, executant, executor,
     executrix, fabricator, father, firer, founder, gadfly, galvanizer,
     generator, grower, impeller, inaugurator, inducer, industrialist,
     initiator, inspirer, instigator, institutor, introducer, inventor,
     journeyman, maker, manufacturer, master, master craftsman, medium,
     mother, mover, moving spirit, operant, operative, operator,
     organizer, originator, parent, past master, performer, perpetrator,
     persuader, planner, pleader, practitioner, precursor,
     primum mobile, producer, prompter, raiser, realizer, shaper, sire,
     smith, spark, spark plug, sparker, stimulator, subject, tempter,
     wheedler, worker, wright

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