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activate
1 ENTRIES FOUND:
activates; activated; activating
activates; activated; activating
Learner's definition of ACTIVATE
[+ object]
1
: to make (something) active or more active使活动；使活跃: such as
a : to cause (a device) to start working激活；启动
- Touch the screen to activate the system.触摸屏幕来激活系统。
- activate and then deactivate a mechanism激活机制，然后停用
- A loud alarm was activated [=set off] when he opened the door.他开门时引发了刺耳的警报声。
- The camera is activated by pushing a button.按下按钮便可开启相机。
- The bomb was activated by remote control.炸弹是遥控引爆的。
b chemistry : to cause (a chemical reaction or natural process) to begin使起反应；使活化
- Sunlight activates a chemical reaction in the plant's leaves.在阳光的照射下，植物叶子中会发生一种化学反应。
- vitamins that activate the growth of new cells促进新细胞生长的维生素
2
chiefly US : to order (soldiers) to serve in a war使参战
- The President has activated the reserves.总统已经派出了预备役部队。
- activate the troops派出部队
- Our military unit was activated [=called into action] soon after the start of the war.战争爆发后不久我们分队便被派往前线。
activate
verb
ac·ti·vate ˈak-tə-ˌvāt 
activated; activating
: to make active or more active: such as
a(1)
: to make (something, such as a molecule) reactive or more reactive
(2)
: to convert (something, such as a provitamin) into a biologically active derivative
b
: to make (a substance) radioactive
c
: to treat (a substance, such as carbon or alumina) so as to improve adsorptive properties
d(1)
: to set up or formally institute (an organized group, such as a military unit) with the necessary personnel and equipment
(2)
: to put (an individual or unit) on active duty
: to become active
Example Sentences
Touch the screen to activate the system. activate and then deactivate a mechanism The camera is activated by pushing a button. The bomb was activated by remote control. Sunlight activates a chemical reaction in the plant's leaves. vitamins that activate the growth of new cells The President has activated the reserves. See More
Recent Examples on the Web First, stress can activate molecules that signal the body to produce inflammation. 
Aria Bendix, NBC News, 7 Sep. 2022 These words activate Google Assistant, Google's virtual personal assistant. Ron Amadeo, Ars Technica, 23 Aug. 2022 Property managers should activate the space frequently through booking company happy hours and hosting events with third-party organizations. John Ward, Forbes, 10 Aug. 2022 Samantha and Calvin Briggs had two goals: activate every part of the BCRI that didn’t have art on the wall and encourage youth to see themselves as mini scientists. Shauna Stuart | Sstuart@al.com, al, 28 July 2022 Subscribers can activate the deal at amazon.com/grubhub. Megan Cerullo, CBS News, 6 July 2022 However, if someone is in imminent danger, crisis lines can sometimes activate emergency services that send a mobile crisis unit or ambulance, but experts said this is rare. Byadjoa Smalls-mantey, ABC News, 13 May 2022 Clicking on any of the links on this page will activate the offer(s) of your choice. Xl Media, cleveland, 26 Aug. 2022 Customers can activate their palms by registering a handprint via an Amazon One kiosk or at checkout in participating stores. Ali Francis, Bon Appétit, 11 Aug. 2022 See More
Aria Bendix, NBC News, 7 Sep. 2022 These words activate Google Assistant, Google's virtual personal assistant. Ron Amadeo, Ars Technica, 23 Aug. 2022 Property managers should activate the space frequently through booking company happy hours and hosting events with third-party organizations. John Ward, Forbes, 10 Aug. 2022 Samantha and Calvin Briggs had two goals: activate every part of the BCRI that didn’t have art on the wall and encourage youth to see themselves as mini scientists. Shauna Stuart | Sstuart@al.com, al, 28 July 2022 Subscribers can activate the deal at amazon.com/grubhub. Megan Cerullo, CBS News, 6 July 2022 However, if someone is in imminent danger, crisis lines can sometimes activate emergency services that send a mobile crisis unit or ambulance, but experts said this is rare. Byadjoa Smalls-mantey, ABC News, 13 May 2022 Clicking on any of the links on this page will activate the offer(s) of your choice. Xl Media, cleveland, 26 Aug. 2022 Customers can activate their palms by registering a handprint via an Amazon One kiosk or at checkout in participating stores. Ali Francis, Bon Appétit, 11 Aug. 2022 See More Word History
Etymology
active entry 1 + -ate entry 4, probably as adaptation of French activer, going back to Middle French, derivative of actif active entry 1
First Known Use
1624, in the meaning defined at transitive sense
Time Traveler
The first known use of activate was in 1624 👨🏻🏫 Mr. Ng 韋氏詞典 📚 – mw.mister5️⃣.net
切換為繁體中文