| Pebble 1. (n.) A small roundish stone or bowlder; especially, a stone worn and rounded by the action of water; a pebblestone. 2. (n.) Transparent and colorless rock crystal; as, Brazilian pebble; -- so called by opticians. 3. (v. t.) To grain (leather) so as to produce a surface covered with small rounded prominences. Thesaurus Entries 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 |