fountain \foun"tain\ foun"ti^n, n. f. fontaine, ll.
   fontana, fr. l. fons, fontis. see 2d fount.
   1. a spring of water issuing from the earth.
      1913 webster

   2. an artificially produced jet or stream of water; also, the
      structure or works in which such a jet or stream rises or
      flows; a basin built and constantly supplied with pure
      water for drinking and other useful purposes, or for
      ornament.
      1913 webster

   3. a reservoir or chamber to contain a liquid which can be
      conducted or drawn off as needed for use; as, the ink
      fountain in a printing press, etc.
      1913 webster

   4. the source from which anything proceeds, or from which
      anything is supplied continuously; origin; source.
      1913 webster

            judea, the fountain of the gospel.    --fuller.
      1913 webster

            author of all being,
            fountain of light, thyself invisible. --milton.
      1913 webster

   air fountain. see under air.

   fountain heead, primary source; original; first principle.
      --young.

   fountain inkstand, an inkstand having a continual supply of
      ink, as from elevated reservoir.

   fountain lamp, a lamp fed with oil from an elevated
      reservoir.

   fountain pen, a pen with a reservoir in the handle which
      furnishes a supply of ink.

   fountain pump.
      a a structure for a fountain, having the form of a pump.
      b a portable garden pump which throws a jet, for
          watering plants, etc.

   fountain shell zool., the large west indian conch shell
      strombus gigas.

   fountain of youth, a mythical fountain whose waters were
      fabled to have the property of renewing youth.
      1913 webster
see also:
fount air fountain air fountain heead fountain inkstand fountain lamp 
fountain pen fountain pump fountain shell strombus gigas fountain of youth 

pen \pen\ pe^n, n. oe. penne, of. penne, pene, f. penne,
   fr. l. penna.
   1. a feather. obs. --spenser.
      1913 webster

   2. a wing. obs. --milton.
      1913 webster

   3. an instrument used for writing with ink, formerly made of
      a reed, or of the quill of a goose or other bird, but now
      also of other materials, as of steel, gold, etc. also,
      originally, a stylus or other instrument for scratching or
      graving.
      1913 webster

            graven with an iron pen and lead in the rock. --job
                                                  xix. 24.
      1913 webster

   4. fig.: a writer, or his style; as, he has a sharp pen.
      "those learned pens." --fuller.
      1913 webster

   5. zool. the internal shell of a squid.
      1913 webster

   6. etymol. uncertain. zool. a female swan; -- contrasted
      with cob, the male swan. prov. eng.
      1913 webster

   bow pen. see bow-pen.

   dotting pen, a pen for drawing dotted lines.

   drawing pen, or ruling pen, a pen for ruling lines having
      a pair of blades between which the ink is contained.

   fountain pen, geometric pen. see under fountain, and
      geometric.

   music pen, a pen having five points for drawing the five
      lines of the staff.

   pen and ink, or pen-and-ink, executed or done with a pen
      and ink; as, a pen and ink sketch.

   pen feather. a pin feather. obs.

   pen name. see under name.

   sea pen zool., a pennatula. usually written sea-pen.
      1913 webster
see also:
cob bow pen bow-pen dotting pen drawing pen ruling pen 
fountain pen geometric pen fountain geometric music pen 
pen and ink pen-and-ink pen feather pen name name 
sea pen sea-pen 

fountain pen
     n : a pen that is supplied with ink from a reservoir in its
         barrel