noncore

/ˌnɑnˈkɔr/
adjective
  1. Not belonging to the most important or essential part of something.
    • The company decided to sell its noncore businesses to focus on its main products.
    • Noncore activities such as team-building games are optional for employees.
    • She took a few noncore classes like art history to round out her schedule.
What does "noncore" mean? | whatsthatwordmean | whatsthatwordmean