Pertaining to something that forms or collects into a rounded mass: Mary didn't know what the substance was, but it evidently was an agglomerative matter that was clogging up the drain in her kitchen sink.
2. Regarding a confused or jumbled mass: Jenny's mother asked her to remove the agglomerative heap on the dining room table.
3. Concerning volcanic rock consisting of rounded and angular fragments: The pieces of igneous rock seemed to be quite agglomerative and in a big pile, and some pf them were even fused together.