Definitions of aggregation

1. the act of gathering something together

2. The act of aggregating, or the state of being aggregated; collection into a mass or sum; a collection of particulars; an aggregate.

3. Act of aggregating: state of being collected together : an aggregate.

4. A collection or mass; aggregate.

5. The peculiar movement of the protoplasm in the cells of the tentacles or tendrils of sensitive plants, which being due to previous contact, causes the tentacle or tendril to bend towards the point where the stimulus was applied.