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

pebble \peb"ble\, n. as. papolst=an; cf. l. papula pimple,
   mote. see stone.
   1. a small roundish piece of stone; especially, a stone worn
      and rounded by the action of water; a pebblestone. "the
      pebbles on the hungry beach." --shak.
      1913 webster

            as children gathering pebbles on the shore.
                                                  --milton.
      1913 webster

   2. transparent and colorless rock crystal; as, brazilian
      pebble; -- so called by opticians.
      1913 webster

   pebble powder, slow-burning gunpowder, in large cubical
      grains.

   scotch pebble, varieties of quartz, as agate, chalcedony,
      etc., obtained from cavities in amygdaloid.
      1913 webster
see also:
stone pebble powder scotch pebble 

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

pebble \peb"ble\, v. t. imp.  p. p. pebbled; p. pr.  vb. n.
   pebbling.
   to grain leather so as to produce a surface covered with
   small rounded prominences.
   1913 webster
see also:
pebbled pebbling 

[3] : WordNet (r) 2.0

pebble
     n : a small smooth rounded rock

[4] : Moby Thesaurus II by Grady Ward, 1.0

68 moby thesaurus words for "pebble":
   ace, asphalt, atom, bit, blacktop, carpet, causeway, cement,
   checkstone, cobblestone, concrete, dab, dole, dot, drakestone,
   dram, dribble, driblet, dwarf, farthing, fingerstone, flag, fleck,
   floor, flyspeck, fragment, gobbet, grain, granule, gravelstone,
   groat, hair, handful, iota, jackstone, jot, little, little bit,
   metal, minim, minimum, minutiae, mite, modicum, molecule, mote,
   nutshell, ounce, particle, pave, pebblestone, pinch, pittance,
   point, scruple, slingstone, smidgen, smitch, speck, spoonful, spot,
   tar, thimbleful, tiny bit, tittle, trifling amount, trivia, whit

[5] : The Free On-line Dictionary of Computing (27 SEP 03)

pebble
     
        a polymorphic language.
     
        "a kernel language for abstract data types and modules",
        r.m. burstall  b. lampson, in semantics of data types, lncs
        173, springer 1984.
     
        1995-01-26
     
     
see also:
polymorphic 

Pebble >> P Words
Pebble, definition of term: Pebble
pebble_pag1.html

Pebble Beach >> P Words
Pebble Beach, definition of term: Pebble Beach
pebble+beach_pag1.html