activated
v. B2 Upper Intermediate US //ˈæktəˌveɪtɪd// UK //ˈæktɪvˌeɪtɪd// ac·ti·vat·ed
v. to turn something on or make it start working. You use this for things like alarms, bank cards, or systems that were waiting to be used.
v. to make a mechanism, process, or chemical reaction active or operative. Transitive — requires a direct object to specify what is being set in motion.
I need to call the bank to get my new card activated.
The security system is automatically activated when the last person leaves the building and locks the front door.
The researchers discovered that the dormant cells are only activated when exposed to a specific combination of light and temperature over several hours.
Usage
The verb is transitive and often appears in the passive voice when describing systems or processes.