A small, rounded stone, especially one worn smooth by the action of water. She picked up a pebble from the beach and tossed it into the sea.
Leather that has been textured so as to produce a rough, granulated surface. The handbag was made from pebble leather with a distinctive grain.
A rock fragment between about 4 mm and 64 mm in diameter, especially as classified in geology. Geologists noted that the sediment layer contained mostly quartz pebbles.