activate

動詞

UK/ˈæk.tɪ.veɪt/
US/ˈæk.tə.veɪt/

定義 activate 動詞

  1. Transitive

    to initiate the functioning of something; to cause something to start working or be in effect.

    • The alarm system will activate when the sensor detects movement.

    • The application must be activated before it can be used.

    • For safety, activate the safety lock after each use.

  2. Transitivechemistryspecialized

    to accelerate a chemical reaction, typically through the application of heat.

    • The catalyst activates the reaction, speeding up the production process.

    • Upon heating, the enzyme is activated and begins to break down sugars.

    • Ultraviolet light can activate chemical reactions and produce new compounds.