1 [intransitive and transitive]
if two organizations amalgamate, or if one amalgamates with another, they join and make one big organization [= merge]
amalgamate something with/into/under something
The agency is expected to amalgamate with the National Rivers Authority.
to combine two or more things together to make one thing:
Stir until the ingredients are amalgamated.
amalgamate something with/into something
The editors will amalgamate all the information into one article.
—amalgamation noun [uncountable and countable]
an amalgamation between two companies