معنی کلمه :‌ aggregation

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

1. Full of knots; knotted; having many knots; as, knotty timber; a knotty rope. 2. Hard; rugged; as, a knotty head.[R.] Rewe. 3. Difficult; intricate; perplexed. A knotty point to which we now proceed Pope.