amalgamate

Short definition from Wiktionary

Verb

1. 1
   To merge, to combine, to blend, to join.
2. 2
   To make an alloy of a metal and mercury.
3. 3
   To combine (free groups) by identifying respective isomorphic subgroups.

Adjective

1. 1
   Coalesced; united; combined.

Noun

1. 1
   The substance resulting from a process of amalgamation.