1. [n]  the period of greatest prosperity or productivity
2. [n]  a number that has no factor but itself and 1
3. [n]  the time of maturity when power and vigor are greatest
4. [n]  the second canonical hour; about 6 a.m.
5. [adj]  at the best stage; "our manhood's prime vigor"- Robert Browning
6. [adj]  (math) of or relating to or being an integer that cannot be factored into other integers; "prime number"
7. [v]  insert a primer into (a gun, mine, charge, etc.) preparatory to detonation or firing; "prime a cannon"; "prime a mine"
8. [v]  fill with priming liquid; "prime a car engine"
9. [v]  cover with a primer; apply a primer to

Prime
One of the most celebrated fitness experts in the world, Bob Paris has a new life-changing message for the millions of men over 40 who want to get in shape: It isn`t too late! No intimidation, no impossible goals, no unreasonable demands--this book is so simple and so effective, it`s revolutionary. Paris`s step-by-step, day-by-day self-improvement regimens get results that men can see and feel in a relatively short time.

more details ...

1. \Prime\, a. (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.
   

2. \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},
   {Prince}.]
   1. First in order of time; original; primeval; primitive;
      primary. ``Prime forests.'' --Tennyson.
            She was not the prime cause, but I myself. --Milton.
   Note: In this sense the word is nearly superseded by
         primitive, except in the phrase prime cost.
   2. First in rank, degree, dignity, authority, or importance;
      as, prime minister. ``Prime virtues.'' --Dryden.
   3. First in excellence; of highest quality; as, prime wheat;
      a prime quality of cloth.
   4. Early; blooming; being in the first stage. [Poetic]
            His starry helm, unbuckled, showed him prime In
            manhood where youth ended.            --Milton.
   5. Lecherous; lustful; lewd. [Obs.] --Shak.
   6. Marked or distinguished by a mark (') called a prime mark.
   {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
      England.
   {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.
   

3. \Prime\, n.
   1. The first part; the earliest stage; the beginning or
      opening, as of the day, the year, etc.; hence, the dawn;
      the spring. --Chaucer.
            In the very prime of the world.       --Hooker.
            Hope waits upon the flowery prime.    --Waller.
   2. The spring of life; youth; hence, full health, strength,
      or beauty; perfection. ``Cut off in their prime.''
      --Eustace. ``The prime of youth.'' --Dryden.
   3. That which is first in quantity; the most excellent
      portion; the best part.
            Give him always of the prime.         --Swift.
   4. [F. prime, LL. prima (sc. hora). See {Prime}, a.] The
      morning; specifically (R. C. Ch.), the first canonical
      hour, succeeding to lauds.
            Early and late it rung, at evening and at prime.
                                                  --Spenser.
   Note: Originally, prime denoted the first quarter of the
         artificial day, reckoned from 6 a. m. to 6 p. m.
         Afterwards, it denoted the end of the first quarter,
         that is, 9 a. m. Specifically, it denoted the first
         canonical hour, as now. Chaucer uses it in all these
         senses, and also in the sense of def. 1, above.
               They sleep till that it was pryme large.
                                                  --Chaucer.
   5. (Fencing) The first of the chief guards.
   6. (Chem.) Any number expressing the combining weight or
      equivalent of any particular element; -- so called because
      these numbers were respectively reduced to their lowest
      relative terms on the fixed standard of hydrogen as 1.
      [Obs. or Archaic]
   7. (Arith.) A prime number. See under {Prime}, a.
   8. An inch, as composed of twelve seconds in the duodecimal
      system; -- denoted by [']. See 2d {Inch}, n., 1.
   {Prime of the moon}, the new moon at its first appearance.
   

4. \Prime\, v. t. [imp. & p. p. {Primed}; p. pr. & vb. n.
   {Priming}.] [From {Prime}, a.]
   1. To apply priming to, as a musket or a cannon; to apply a
      primer to, as a metallic cartridge.
   2. To lay the first color, coating, or preparation upon (a
      surface), as in painting; as, to prime a canvas, a wall.
   3. To prepare; to make ready; to instruct beforehand; to
      post; to coach; as, to prime a witness; the boys are
      primed for mischief. [Colloq.] --Thackeray.
   4. To trim or prune, as trees. [Obs. or Prov. Eng.]
   5. (Math.) To mark with a prime mark.
   {To prime a pump}, to charge a pump with water, in order to
      put it in working condition.
   

5. \Prime\, v. i.
   1. To be renewed, or as at first. [Obs.]
            Night's bashful empress, though she often wane, As
            oft repeats her darkness, primes again. --Quarles.
   2. To serve as priming for the charge of a gun.
   3. To work so that foaming occurs from too violent
      ebullition, which causes water to become mixed with, and
      be carried along with, the steam that is formed; -- said
      of a steam boiler.