Synonyms of the word 
HETEROGENEOUSNESS → HETEROGENEITY - NONUNIFORMITY
heterogeneousness
- n. The quality of being heterogeneous.
heterogeneity
- n. (uncountable) Diversity.
- n. (countable) A composition of diverse parts.
- n. The quality of a substance which is not uniform.
nonuniformity
- n. (uncountable) The condition of being nonuniform.
- n. (countable) A nonuniform thing.
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