[1] : The Collaborative International Dictionary of English v.0.48

sandpiper \sand"pi`per\, n.
   1. zool. any one of numerous species of small limicoline
      game birds belonging to tringa, actodromas,
      ereunetes, and various allied genera of the family
      tringidae.
      1913 webster

   note: the most important north american species are the
         pectoral sandpiper tringa maculata, called also
         brownback, grass snipe, and jacksnipe; the
         red-backed, or black-breasted, sandpiper, or dunlin
         tringa alpina; the purple sandpiper tringa
         maritima: the red-breasted sandpiper, or knot tringa
         canutus; the semipalmated sandpiper ereunetes
         pusillus; the spotted sandpiper, or teeter-tail
         actitis macularia; the buff-breasted sandpiper
         tryngites subruficollis, and the bartramian
         sandpiper, or upland plover. see under upland. among
         the european species are the dunlin, the knot, the
         ruff, the sanderling, and the common sandpiper
         actitis hypoleucus syn. tringoides hypoleucus,
         called also fiddler, peeper, pleeps, weet-weet,
         and summer snipe. some of the small plovers and
         tattlers are also called sandpipers.
         1913 webster

   2. zool. a small lamprey eel; the pride.
      1913 webster

   curlew sandpiper. see under curlew.

   stilt sandpiper. see under stilt.
      1913 webster
see also:
tringa actodromas ereunetes tringidae tringa maculata brownback 
grass snipe jacksnipe tringa alpina tringa maritima tringa canutus 
ereunetes pusillus actitis macularia tryngites subruficollis upland actitis hypoleucus 
tringoides hypoleucus fiddler peeper pleeps weet-weet 
summer snipe curlew sandpiper curlew stilt sandpiper stilt 

[2] : The Collaborative International Dictionary of English v.0.48

fiddler \fid"dler\, n. as. fiethelere.
   1. one who plays on a fiddle or violin.
      1913 webster

   2. zool. a burrowing crab of the genus gelasimus, of many
      species. the male has one claw very much enlarged, and
      often holds it in a position similar to that in which a
      musician holds a fiddle, hence the name; -- called also
      fiddler crab, calling crab, soldier crab, and
      fighting crab.
      1913 webster

   3. zool. the common european sandpiper tringoides
      hypoleucus; -- so called because it continually
      oscillates its body.
      1913 webster

   fiddler crab. zool. see fiddler, n., 2.
      1913 webster
see also:
gelasimus fiddler crab calling crab soldier crab fighting crab tringoides hypoleucus 
fiddler crab fiddler 

[3] : WordNet (r) 2.0

fiddler
     n 1: a musician who plays the violin syn: violinist
     2: someone who manipulates in a nervous or unconscious manner
        syn: twiddler
     3: an unskilled person who tries to fix or mend syn: tinkerer
see also:
violinist twiddler tinkerer 

Fiddler >> F Words
Fiddler, definition of term: Fiddler
fiddler_pag1.html

Fiddler Crab >> F Words
Fiddler Crab, definition of term: Fiddler Crab
fiddler+crab_pag1.html