C1noun2K

Activation

UK /["/ˌæktɪˈveɪʃn/"]/US /["/ˌæktɪˈveɪʃn/"]/

Definition

the act of making something such as a device or chemical process start working

In simple words: The process of making something active or working.

Examples

  • The activation of several target genes results in two major effects.
  • to trigger/inhibit/block the activation of something

Usage notes

Used in both technical and everyday contexts. In formal settings, it often refers to starting processes or systems, while in informal situations, it can refer to motivating actions. Avoid in casual conversations unless explaining a clear concept.

Grammar pattern

activation + of + object

Memory hint

Think of 'active'—'activation' is like turning something into a lively activity.

Collocations

  • activation key
  • activation process
  • activation energy

Synonyms

  • initiation
  • energizing
  • triggering
  • launching
  • starting

Antonyms

  • deactivation

Common mistakes

  • Confused with 'activate' as a verb instead of using 'activation' as a noun.
  • Using 'activation' in a context where a simple word like 'start' would work better.