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- spacing 68
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- Parts 45
- leitmotiv 55
- Impulse 66
- allotment 105
reaction
4 ENTRIES FOUND:
plural reactions
plural reactions
Learner's definition of REACTION
1
: the way someone acts or feels in response to something that happens, is said, etc.反应；回应
[count]
- Their reaction to the news was positive.他们对这个消息的反应是积极的。
- When I told him what happened, his immediate reaction was one of shock.我将所发生之事告诉他时，他的第一反应是震惊。
- The announcement produced an angry/stunned reaction from most of the people at the meeting.这个通告使与会的大多数人感到愤怒/大吃一惊。
- My first reaction when I met him was not to trust him.我和他相识时的第一反应是不要相信他。
- There has been a mixed reaction [=people have reacted in different ways] to the new policy.人们对这项新政策反应不一。
[noncount]
- There hasn't yet been much reaction to the announcement.人们对这个通告还没有多少反应。
- The newspaper received many angry letters in reaction to [=in response to] the editorial.报社收到了很多对这篇社论表示气愤的信件。
2
: an action or attitude that shows disagreement with or disapproval of someone or something不同意；不赞成
[count]
— usually singular通常用单数 — often + against - The modernist movement in literature was a reaction against traditional literary conventions.文学中的现代主义运动是对传统文学陈规旧律的一种抵抗。
[noncount]
- There has been strong reaction against the government's policies.有人强烈反对政府的政策。
3
reactions [plural] : the ability to act and move quickly in order to avoid sudden danger反应能力；反应灵敏度
- A good driver has quick reactions.好的驾驶员有迅速做出反应的能力。
- The speed of his reactions saved his life.他快速的反应挽救了他的性命。
4
medical : an occurrence in which your body is affected by a drug, food, etc., in usually a bad way（不良）反应；副作用
[count]
- I had/suffered a (bad) reaction to the medicine.我用这种药出现了（不良）反应。
- Something she ate caused/triggered an allergic reaction.她吃的东西引起了过敏反应。
[noncount]
- There is a risk of adverse reaction to the medicine.服用这种药物会有发生不良反应的风险。
5
a chemistry : a chemical change that occurs when two or more substances combine to form a new substance化学反应
[count]
- The reaction of hydrogen with oxygen makes water.氢气与氧气发生化学反应生成水。
- chemical reactions化学反应
[noncount]
- a substance produced by chemical reaction由化学反应生成的一种物质
b [count, noncount] physics : a process in which the nucleus of an atom is changed by being split apart or joined with the nucleus of another atom核反应
— called also nuclear reaction
— see also chain reaction 6
[count, noncount] physics : a physical force that opposes the action of an equal and opposite force反（作用）力
- For every action, there is an equal and opposite reaction.每一个作用力，都有一个大小相等、方向相反的反作用力。
7
[noncount] formal : a strong tendency or desire to oppose new political or social ideas反动
- They have had to fight against the forces of reaction.他们不得不同反动势力进行斗争。
reaction
noun
re·ac·tion rē-ˈak-shən 
1
a
: the act or process or an instance of reacting
b
: resistance or opposition to a force, influence, or movement
especially : tendency toward a former and usually outmoded political or social order or policy
3
: bodily response to or activity aroused by a stimulus:
a
: an action induced by vital resistance to another action
especially : the response of tissues to a foreign substance (such as an antigen or infectious agent)
b
: depression or exhaustion due to excessive exertion or stimulation
c
: heightened activity and overaction succeeding depression or shock
d
: a mental or emotional disorder forming an individual's response to his or her life situation
Example Sentences
Their reaction to the news was positive. When I told him what happened, his immediate reaction was one of shock. The announcement produced an angry reaction from most of the people at the meeting. My first reaction when I met him was not to trust him. There hasn't yet been much reaction to the announcement. There has been strong reaction against the government's policies. A good driver has quick reactions. The speed of his reactions saved his life. See More
Recent Examples on the Web My hope is that people will take the time to stand still and think here, to fully experience these elements together and have an emotional reaction that stays with them long after their visit. 
Norman Vanamee, Town & Country, 7 Sep. 2022 Yet in September, 2022, millions of people saw an image and had the exact same reaction, and rallied together to achieve a common cause. Will Sloan, The New Yorker, 6 Sep. 2022 Parents have argued the bill would interfere with their rights to choose what is best for their child and could lead to treatment complications if a child had a serious reaction and hadn't disclosed that they were vaccinated. Anahi Valenzuela, The Week, 31 Aug. 2022 That's why some people may only have a mild reaction to bites, while others, more sensitive to the foreign protein, react with large areas of swelling that are more painful. Melissa Mahtani, CNN, 31 Aug. 2022 Generally, this happens when someone with a seasonal allergy has a reaction in their mouth and throat to a fruit or vegetable that contains a similar protein. Emilia Benton, Men's Health, 29 Aug. 2022 Key Arizona Republicans had no immediate reaction to Hamadeh's teenage posts, although many are listing election security among their top issues and advocating for legislation that will tighten voting laws in future elections. Tara Kavaler, The Arizona Republic, 25 Aug. 2022 Neither Fox nor Croft had any discernible reaction as U.S. District Judge Robert Jonker read the verdicts, both staring forward and occasionally leaning over to speak to their attorneys. Tresa Baldas, Detroit Free Press, 23 Aug. 2022 Neither Fox nor Croft had any discernible reaction as U.S. District Judge Robert Jonker read the verdicts, both staring forward and occasionally leaning over to speak to their attorneys. Tresa Baldas, USA TODAY, 23 Aug. 2022 See More
Norman Vanamee, Town & Country, 7 Sep. 2022 Yet in September, 2022, millions of people saw an image and had the exact same reaction, and rallied together to achieve a common cause. Will Sloan, The New Yorker, 6 Sep. 2022 Parents have argued the bill would interfere with their rights to choose what is best for their child and could lead to treatment complications if a child had a serious reaction and hadn't disclosed that they were vaccinated. Anahi Valenzuela, The Week, 31 Aug. 2022 That's why some people may only have a mild reaction to bites, while others, more sensitive to the foreign protein, react with large areas of swelling that are more painful. Melissa Mahtani, CNN, 31 Aug. 2022 Generally, this happens when someone with a seasonal allergy has a reaction in their mouth and throat to a fruit or vegetable that contains a similar protein. Emilia Benton, Men's Health, 29 Aug. 2022 Key Arizona Republicans had no immediate reaction to Hamadeh's teenage posts, although many are listing election security among their top issues and advocating for legislation that will tighten voting laws in future elections. Tara Kavaler, The Arizona Republic, 25 Aug. 2022 Neither Fox nor Croft had any discernible reaction as U.S. District Judge Robert Jonker read the verdicts, both staring forward and occasionally leaning over to speak to their attorneys. Tresa Baldas, Detroit Free Press, 23 Aug. 2022 Neither Fox nor Croft had any discernible reaction as U.S. District Judge Robert Jonker read the verdicts, both staring forward and occasionally leaning over to speak to their attorneys. Tresa Baldas, USA TODAY, 23 Aug. 2022 See More Word History
First Known Use
1585, in the meaning defined at sense 1a
Time Traveler
The first known use of reaction was in 1585 Phrases Containing reaction
noun¹
noun²
usuallyreactions
noun³
noun⁴
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