WordReference Random House Learner's Dictionary of American English © 2026
ag•glom•er•a•tion /əˌglɑməˈreɪʃən/USA pronunciation
n.
WordReference Random House Unabridged Dictionary of American English © 2026- [uncountable] the action of collecting or gathering into a cluster or mass.
- a heap, cluster, or mass, usually untidy or messy:[countable]a huge agglomeration of rubbish.
ag•glom•er•a•tion
(ə glom′ə rā′shən),USA pronunciation n.
- a jumbled cluster or mass of varied parts.
- the act or process of agglomerating.
- agglomerate + -ion 1765–75
- 1. . jumble, conglomeration, aggregation, conglomerate, agglomerate, aggregate.
'agglomeration' also found in these entries (note: many are not synonyms or translations):