Activation – Definition & Meaning

Activation is a word that is commonly used in various fields such as science, technology, and psychology. It is a term that is often associated with the concept of starting something or making it active. In this article, we will explore the definition and meaning of activation, its origin, and its use in different contexts.


Activation can be defined as the process of starting or making something active. It can also refer to the state of being active or operational. In psychology, activation refers to the level of arousal or alertness in an individual’s nervous system.


The word activation has its roots in the Latin word “activus,” which means “active.” It was first used in the English language in the early 17th century.

Meaning in different dictionaries

According to the Oxford English Dictionary, activation is defined as “the act of making something active or operative.” Merriam-Webster defines activation as “the act or process of making something active or effective.”


Activation is often associated with the concept of starting or initiating something. It is also associated with the idea of energy, movement, and stimulation. In psychology, activation is associated with the level of arousal or alertness in an individual’s nervous system.


Some synonyms of activation include initiation, commencement, start, launch, and beginning.


Some antonyms of activation include deactivation, shutdown, cessation, and termination.

The same root words

Words that have the same root as activation include active, activity, activate, and act.

Example Sentences

  • The activation of the alarm system alerted the security team.
  • The activation of the new software improved the efficiency of the company’s operations.
  • The activation of the brain’s reward system is associated with feelings of pleasure.
  • The activation of the emergency response team was necessary to handle the crisis.
  • The activation of the immune system is crucial in fighting off infections.
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