'Melting pot' definitions:

Definition of 'melting pot'

From: WordNet
noun
An environment in which many ideas and races are socially assimilated
noun
A vessel made of material that does not melt easily; used for high temperature chemical reactions [syn: crucible, melting pot]

Definition of 'Melting pot'

From: GCIDE
  • Melting pot \Melt"ing pot\ n.
  • 1. A vessel in which anything is melted; a crucible. [1913 Webster]
  • 2. (Sociology) (fig.) A place where people of different backgrounds become similar in culture. The United States has often been referred to as a melting pot, though the differences in cultures of recently arrived immigrants persists beyond the generation of immigrants. [PJC]

Synonyms of 'melting pot'

From: Moby Thesaurus