nose \nose\ n=oz, n. as. nosu; akin to d. neus, g. nase,
   ohg. nasa, icel. n"os, sw. naumsa, dan. naumse, lith.
   nosis, russ. nos', l. nasus, nares, skr. n=as=a, n=as.
   root261. cf. nasal, nasturtium, naze, nostril,
   nozzle.
   1913 webster
   1. anat. the prominent part of the face or anterior
      extremity of the head containing the nostrils and
      olfactory cavities; the olfactory organ. see nostril,
      and olfactory organ under olfactory.
      1913 webster

   2. the power of smelling; hence, scent.
      1913 webster

            we are not offended with a dog for a better nose
            than his master.                      --collier.
      1913 webster

   3. a projecting end or beak at the front of an object; a
      snout; a nozzle; a spout; as, the nose of a bellows; the
      nose of a teakettle.
      1913 webster

   nose bit carp., a bit similar to a gouge bit, but having
      a cutting edge on one side of its boring end.

   nose hammer mach., a frontal hammer.

   nose hole glass making, a small opening in a furnace,
      before which a globe of crown glass is held and kept soft
      at the beginning of the flattening process.

   nose key carp., a fox wedge.

   nose leaf zool., a thin, broad, membranous fold of skin
      on the nose of many species of bats. it varies greatly in
      size and form.

   nose of wax, fig., a person who is pliant and easily
      influenced. "a nose of wax to be turned every way."
      --massinger

   nose piece, the nozzle of a pipe, hose, bellows, etc.; the
      end piece of a microscope body, to which an objective is
      attached.

   to hold one's nose to the grindstone, to put one's nose to
   the grindstone, or to bring one's nose to the grindstone.
      see under grindstone.

   to lead by the nose, to lead at pleasure, or to cause to
      follow submissively; to lead blindly, as a person leads a
      beast. --shak.

   to put one's nose out of joint, to humiliate one's pride,
      esp. by supplanting one in the affections of another.
      slang

   to thrust one's nose into, to meddle officiously in.

   to wipe one's nose of, to deprive of; to rob. slang

   on the nose,
      a exactly, accurately.
      b racing to win, as opposed to to place or to
          show.
          1913 webster +pjc
see also:
nasal nasturtium naze nostril nozzle olfactory organ 
olfactory nose bit nose hammer nose hole nose key 
nose leaf nose of wax nose piece to hold one's nose to the grindstone to put one's nose to the grindstone 
to bring one's nose to the grindstone grindstone to lead by the nose to put one's nose out of joint to thrust one's nose into 
to wipe one's nose of on the nose to place to show