Conglomerate

1. n. 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.
2. a. Gathered into a ball or a mass; collected together; concentrated; as, conglomerate rays of light.
3. a. Closely crowded together; densly clustered; as, conglomerate flowers.
4. a. Composed of stones, pebbles, or fragments of rocks, cemented together.
5. n. That which is heaped together in a mass or conpacted from various sources; a mass formed of fragments; collection; accumulation.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.