Source : Webster's Revised Unabridged Dictionary (1913)

   2. Drawn out or extended in time; continued through a
      considerable tine, or to a great length; as, a long series
      of events; a long debate; a long drama; a long history; a
      long book.

   3. Slow in passing; causing weariness by length or duration;
      lingering; as, long hours of watching.

   4. Occurring or coming after an extended interval; distant in
      time; far away.

            The we may us reserve both fresh and strong Against
            the tournament, which is not long.    --Spenser.

   5. Extended to any specified measure; of a specified length;
      as, a span long; a yard long; a mile long, that is,
      extended to the measure of a mile, etc.

   6. Far-reaching; extensive. `` Long views.'' --Burke.

   7. (Phonetics) Prolonged, or relatively more prolonged, in
      utterance; -- said of vowels and syllables. See {Short},
      a., 13, and Guide to Pronunciation, [sect][sect] 22, 30.

   Note: Long is used as a prefix in a large number of compound
         adjectives which are mostly of obvious meaning; as,
         long-armed, long-beaked, long-haired, long-horned,
         long-necked, long-sleeved, long-tailed, long- worded,
         etc.

   {In the long run}, in the whole course of things taken
      together; in the ultimate result; eventually.

   {Long clam} (Zo["o]l.), the common clam ({Mya arenaria}) of
      the Northern United States and Canada; -- called also
      {soft-shell clam} and {long-neck clam}. See {Mya}.

   {Long cloth}, a kind of cotton cloth of superior quality.

   {Long clothes}, clothes worn by a young infant, extending
      below the feet.

   {Long division}. (Math.) See {Division}.

   {Long dozen}, one more than a dozen; thirteen.

   {Long home}, the grave.

   {Long measure}, {Long mater}. See under {Measure}, {Meter}.
      

   {Long Parliament} (Eng. Hist.), the Parliament which
      assembled Nov. 3, 1640, and was dissolved by Cromwell,
      April 20, 1653.

   {Long price}, the full retail price.

   {Long purple} (Bot.), a plant with purple flowers, supposed
      to be the {Orchis mascula}. --Dr. Prior.

   {Long suit} (Whist), a suit of which one holds originally
      more than three cards. --R. A. Proctor.

   {Long tom}.
      (a) A pivot gun of great length and range, on the dock of
          a vessel.
      (b) A long trough for washing auriferous earth. [Western
          U.S.]
      (c) (Zo["o]l.) The long-tailed titmouse.

   {Long wall} (Coal Mining), a working in which the whole seam
      is removed and the roof allowed to fall in, as the work
      progresses, except where passages are needed.

   {Of long}, a long time. [Obs.] --Fairfax.

   {To be}, or {go}, {long of the market}, {To be on the long
   side of the market}, etc. (Stock Exchange), to hold stock for
      a rise in price, or to have a contract under which one can
      demand stock on or before a certain day at a stipulated
      price; -- opposed to {short} in such phrases as, to be
      short of stock, to sell short, etc. [Cant] See {Short}.

   {To have a long head}, to have a farseeing or sagacious mind.