differentiation is on the Academic Word List.

Singular
differentiation

Plural
differentiations

  1. (uncountable) Differentiation finding or showing the differences between things.
    In the shop, there was no differentiation between product from Asia and product from Europe.
  2. (uncountable) Differentiation is the process of becoming or making something different.
    As the cells grow and divide, differentiation takes place. You can begin to see some as muscle cells, some as blood cells, etc.
  3. (uncountable) Differentiation is acting different towards different people or situations.
    Schools tend to have little formal curricular differentiation between the sexes, except in physical education.
  4. (uncountable); (mathematics) Differentiation is the process of obtaining the derivative of a function.

Synonyms

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