gathered into a ball or a mass; collected together; concentrated; as, conglomerate rays of light.-closely crowded together; densly clustered; as, conglomerate flowers.-composed of stones, pebbles, or fragments of rocks, cemented together.-that which is heaped together in a mass or conpacted from various sources; a mass formed of fragments; collection; accumulation.-a rock, composed or rounded fragments of stone cemented together by another mineral substance, either calcareous, siliceous, or argillaceous; pudding stone; -- opposed to agglomerate. see breccia.-to gather into a ball or round body; to collect into a mass.