specializations

/S P EH1 SH AH0 L IH0 Z EY1 SH AH0 N Z/
noun
  1. 1

    The act or process of specializing.

  2. 2

    The area in which someone specializes.

  3. 3

    The adaptation of an organism to a specific environment, or adaptation of an organ to a particular function.

  4. 4

    A proof, axiom, problem, or definition whose cases are completely covered by another, broader concept.

    โ€œA triangle is a specialization of a polygon to one with exactly three sides.โ€

Source: https://en.wiktionary.org/wiki/specialization, https://en.wiktionary.org/wiki/specializations