react

re·act

 (rē-ăkt′)

v. re·act·ed, re·act·ing, re·acts

v.intr.

1. To act in response to or under the influence of a stimulus or prompting: reacted strongly to the sarcastic tone of the memorandum.

2. To act in opposition to a former condition or act: composers who reacted against romanticism.

3. To act reciprocally or in return.

4. Chemistry To undergo a reaction: Methane reacts with hydroxyl to produce formaldehyde.

v.tr. Chemistry

To cause (a substance or substances) to undergo a reaction.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

react

(rɪˈækt)

vb

1. (intr; foll by to, upon, etc) (of a person or thing) to act in response to another person, a stimulus, etc, or (of two people or things) to act together in a certain way

2. (foll by: against) to act in an opposing or contrary manner

3. (General Physics) (intr) physics to exert an equal force in the opposite direction to an acting force

4. (Chemistry) chem to undergo or cause to undergo a chemical reaction

[C17: from Late Latin reagere, from re- + Latin agere to drive, do]

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

re•act

(riˈækt)

v.i.

1. to act in response to an agent, influence, stimulus, etc.: to react to a drug; reacted to the noise by jumping.

2. to act reciprocally upon each other, as two things.

3. to act in a reverse direction or manner, esp. so as to return to a prior condition.

4. to act in opposition, as against some force.

5. to undergo a chemical reaction.

[1635–45]

Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

react

Past participle: reacted
Gerund: reacting

Imperative

react

react

Collins English Verb Tables © HarperCollins Publishers 2011

Thesaurus

Verb	1.	react - show a response or a reaction to something respond treat - regard or consider in a specific way; "I treated his advances as a joke" bristle - react in an offended or angry manner; "He bristled at her suggestion that he should teach her how to use the program" flip out, flip - react in an excited, delighted, or surprised way; "he flipped when he heard that he was accepted into Princeton University" overreact - show an exaggerated response to something; "Don't overreact to the bad news--take it easy" answer - react to a stimulus or command; "The steering of my new car answers to the slightest touch" accept - be sexually responsive to, used of a female domesticated mammal; "The cow accepted the bull" stool - react to a decoy, of wildfowl respond - respond favorably or as hoped; "The cancer responded to the aggressive therapy" greet - react to in a certain way; "The President was greeted with catcalls" explode - show a violent emotional reaction; "The boss exploded when he heard of the resignation of the secretary" accept - react favorably to; consider right and proper; "People did not accept atonal music at that time"; "We accept the idea of universal health care" answer - respond to a signal; "answer the door"; "answer the telephone" refuse, decline - show unwillingness towards; "he declined to join the group on a hike" consent, go for, accept - give an affirmative reply to; respond favorably to; "I cannot accept your invitation"; "I go for this resolution" marvel, wonder - be amazed at; "We marvelled at the child's linguistic abilities" acknowledge, notice - express recognition of the presence or existence of, or acquaintance with; "He never acknowledges his colleagues when they run into him in the hallway"; "She acknowledged his complement with a smile"; "it is important to acknowledge the work of others in one's own writing" act, move - perform an action, or work out or perform (an action); "think before you act"; "We must move quickly"; "The governor should act on the new energy bill"; "The nanny acted quickly by grabbing the toddler and covering him with a wet towel" refuse, reject, resist - resist immunologically the introduction of some foreign tissue or organ; "His body rejected the liver of the donor"
	2.	react - act against or in opposition to; "She reacts negatively to everything I say" oppose act, move - perform an action, or work out or perform (an action); "think before you act"; "We must move quickly"; "The governor should act on the new energy bill"; "The nanny acted quickly by grabbing the toddler and covering him with a wet towel" act on, follow up on, pursue - carry further or advance; "Can you act on this matter soon?" buck, go against - resist; "buck the trend"
	3.	react - undergo a chemical reaction; react with another substance under certain conditions; "The hydrogen and the oxygen react" chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions change state, turn - undergo a transformation or a change of position or action; "We turned from Socialism to Capitalism"; "The people turned against the President when he stole the election" bromate, brominate - react with bromine

Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.

react

verb

1. respond, act, take, proceed, behave, conduct yourself They reacted violently to the news.

2. (with against) rebel against, oppose, revolt against, rise up against My father never saved and perhaps I reacted against that.

Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002

react

verb

1. To act in return to something, as a stimulus:

respond.

2. To present with a specified reaction:

greet, meet, respond.

The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Translations

يتأثَّر بصورةٍ سَيِّئَهيَتَفَاعَلُيَرُد الفِعْليرُد الفِعْل ضِد

reagovatstavět se

reageregøre oprør mod

reagierenwiderstreben

αντιδρώ

reaccionar

reagoida

réagir

reagirati

reakcióba lép

hafa áhrif; òola ; bregîast viîveita mótspyrnu, vinna gegn

reagire

反応する

반응하다

atoveikisbūti alergiškampriešgyniautireakcingasreakcionierius

būt alerģiskamizrādīt pretreakcijunegatīvi reaģētnoraidīt

reageren

reagere

zareagować

reagir

реагироватьсреагировать

odzvati se

reagera

มีปฏิกิริยา

tepki göstermekbaş kaldırmakkarşı gelmekkarşılık vermekreaksiyon göstermek

phản ứng

起反应过敏反抗对药物等有不良反应

react

[riːˈækt] VI

1. (gen) → reaccionar
to react against sth/sb → reaccionar contra algo/algn
companies have reacted by increasing their prices → la reacción de las empresas ha sido subir los precios, las empresas han reaccionado subiendo los precios
to react on sth/sb → afectar algo/a algn
alcohol always reacted badly on him → el alcohol siempre le afectaba negativamente, siempre tenía una reacción mala con el alcohol
to react to [+ news, situation] → reaccionar ante; [+ foreign substance] → reaccionar a
to react to sb → reaccionar or responder ante algn

2. (Chem, Phys) → reaccionar (with con) to react together → tener una reacción conjunta, reaccionar conjuntamente

Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

react

[riˈækt] vi

(= respond) → réagir
to react against sth → réagir contre qch

to react to sth [+ drug, treatment, allergen] → réagir à qch

(CHEMISTRY) → réagir
to react with sth → réagir avec qch

Collins English/French Electronic Resource. © HarperCollins Publishers 2005

react

vi

(= respond, Chem, Phys) → reagieren (→ to auf +acc); slow to react (Chem) → reaktionsträge; she was slow to react to my offer → sie reagierte nur langsam auf mein Angebot; to react against → negativ reagieren auf (+acc)

(= have an effect) → wirken (→ on, upon auf +acc)

Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

react

[riːˈækt] vi to react (against/to) → reagire (contro/a)

Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

react

(riˈӕkt) verb

1. to behave in a certain way as a result of something. How did he react when you called him a fool?; He reacted angrily to the criticism; Hydrogen reacts with oxygen to form water. reageer يَرُد الفِعْل реагирам reagir reagovat reagieren reagere αντιδρώreaccionar reageerima فعل و انفعال کردن reagoida réagir לְהָגִיב प्रतिक्रिया करना reagirati reagál; reakcióba lép (kémiailag) bereaksi bregðast við, svara, sÿna viðbrögð; hvarfast reagire 反応する 반응하다 reaguoti reaģēt bertindak reagerenreagerezareagować ترتاثير لاندى راتلل، عكس العمل ښودل، بيرته راګرځيدل، ځوابيدل، مدافعه كول، متقابله حمله كول،تعامل كول reagir a reacţiona реагировать reagovať odzivati se reagovati reagera ตอบสนอง tepki göstermek, karşılık vermek 起反應 взаємодіяти رد عمل ظاہر کرنا phản ứng lại 起反应

2. (with against) to behave or act in a certain way in order to show rejection of. Young people tend to react against their parents. reageer يرُد الفِعْل ضِد реагирам reagir stavět se (proti) widerstreben gøre oprør mod αντιδρώreaccionar vastu tegutsema عکس العمل داشتن یا نشان دادن reagoida réagir לִפעוֹל रासायनिक परिवर्तन करना opirati se, djelovati protivno lázad menentang veita mótspyrnu, vinna gegn reagire 反応する 반작용하다 priešgyniauti, priešintis izrādīt pretreakciju; noraidīt melawan zich verzetten tegen reagere negativt på sprzeciwiać się عكس العمل ښودل reagir a ri­posta противиться stavať sa (proti) upirati se reagovati göra motstånd, opponera sig ตอบสนอง karşı gelmek, baş kaldırmak 反抗 протидіяти; чинити опір جوابی عمل کرنا phản đối lại 反抗

3. (with to) to be affected, usually badly, by (a drug etc). I react very badly to penicillin. reageer يتأثَّر بصورةٍ سَيِّئَه реагирам ter reação reagovat reagieren reagere αντιδρώreaccionar (kellelegi) halvasti mõjuma واکنش نشان دادن reagoida réagir לְהָגִיב לְ- किसी पदार्थ में परिवर्तन करना reagirati reagál bereaksi hafa áhrif; þola (illa); bregðast við reagire 反応する 반응을 나타내다 būti alergiškam negatīvi reaģēt; būt alerģiskam bertindak balas reageren op få en reaksjon mot reagować عكس العمل ښودل ter reacção a avea o reacţie (negativă) la реагировать reagovať odzivati se reagovati reagera på เกิดปฏิกิริยาต่อต้าน reaksiyon göstermek (對藥物等)有（不良）反應 реагувати الٹ کر اثر کرنا phản ứng đối với thuốc （对药物等）有不良反应，过敏（药物等）产生副作用

reˈaction (-ʃən) noun

1. the act of reacting. What was his reaction to your remarks?; I get a bad reaction from penicillin; I'd like to ask you for your reactions to these suggestions. reaksie رد فِعْل реагиране reação reakce, odpověď die Reaktion reaktion αντίδρασηreacción reaktsioon واکنش reaktio réactionתגובה प्रतिक्रिया reakcija reagálás reaksi viðbragð reazione 反応 반응 reakcija, atoveikis reakcija; atbilde tindakan reactiereaksjonreakcja عكس العمل،اغيزه، مدافعه، حمله ، مقابله، (دتعامل كيمياوى تغير) بيرته راګر ځيدنه، ارتجاع reacção reacţie, mod de a reacţiona реакция reakcia odziv reakcija reaktion การตอบสนอง tepki, reaksiyon 反應 реакція رد عمل sự phản ứng 反应

2. a change of opinions, feelings etc (usually against someone or something). The new government was popular at first, but then a reaction began. verandering, wending تَغيير في الرأي реакция reação zvrat die Rückwirkung reaktion mod αντίδρασηreacción vastureaktsioon واکنش muutos réactionהתנגדות किसी के खिलाफ विचार या भावना में परिवर्तन nagao obrat reakció penentangan gagnverkun reazione 反動 반동, 반발 priešiškumas reakcija; pretdarbība pertentangan pendapat reactiereaksjonreakcja عكس العمل reacção reacţie de respingere обратное действие zvrat reakcija reakcija opposition, motstånd การเปลี่ยนแปลงความรู้สึก tepki 反動勢力 зворотна дія مخالف اثر phản đối lại cái gì 反作用力

3. a process of change which occurs when two or more substances are put together. (a) nuclear reaction; a chemical reaction between iron and acid. reaksie رَد فِعْل، تَفاعُل реакция reação reakce die Reaktion reaktion χημική αντίδραση reacción reaktsioon فعل و انفعال reaktio réactionתגובה रसायनकि परिवर्तन reakcija reakció reaksi (efna)hvörf reazione 反応 화학 반응 reakcija reakcija tindak balas kimia reactiereaksjonreakcja فعل reacção reacţie реакция reakcia reakcija reakcija reaktion ปฏิกิริยาเคมี reaksiyon, tepki 化學反應 реакція; взаємодія ایک مادے کا دوسرے پر اثر phản ứng hóa học 化学反应

reˈactionary (-ʃə-) adjective, noun

(plural reˈactionaries) (a person) opposed to change and progress or favouring a return to things as they were. reaksionêr رَجْعي реакционер reacionário reakcionář(ský) reaktionär reaktionær; reaktionær person αντιδραστικόςreaccionario tagurlik ارتجاعی؛ واپس گرایانه؛ مرتجع taantumuksellinen réactionnaireריאקציונר प्रतिक्रियावादी reakcionaran, nazadan reakciós reaksioner afturhaldssamur maður reazionario 反動の 반작용의 reakcingas; reakcionierius reakcionārs pertukaran reactionairreaksjonær, bakstreverskreakcyjny, reakcjonista مرتجع، ارتجاعى reaccionário reacţionar реакционер; реакционныи reakcionár; reakcionársky nazadnjaški reakcionar reaktionär สมาชิกฝ่ายขวา gerici 反動的 реакційний; реакціонер رجعت پسند phản động 反动的

reˈactor noun

(also nuclear reactor) an apparatus in which nuclear energy is produced which can be used as a source of power, eg when converted into electricity. reaktor مُفاعِل реактор reator reaktor der Reaktor reaktor; -reaktor αντιδραστήραςreactor (tuuma)reaktor راکتور reaktori réacteur כּוּר גַרעִינִי संयंत्र reaktor (atom)reaktor reaktor kjarnakljúfur/-ofn reattore 原子炉 원자로 reaktorius []reaktors reaktor reactorreaktorreaktor راکتور reactor reactor (nuclear) реактор reaktor reaktor reaktor reaktor เครื่องปฏิกรณ์นิวเคลียร์ reaktör 核子反應爐 реактор رد عمل ظاہر کرنے والا lò phản ứng 原子炉，核反应堆（原子）反应堆

Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.

react

→ يَتَفَاعَلُ reagovat reagere reagieren αντιδρώ reaccionar reagoida réagir reagirati reagire 反応する 반응하다 reageren reagere zareagować reagir реагировать reagera มีปฏิกิริยา tepki göstermek phản ứng 起反应

Multilingual Translator © HarperCollins Publishers 2009

re·act

v. reaccionar, responder a un estímulo.

English-Spanish Medical Dictionary © Farlex 2012

react

vi responder, reaccionar; The body can react to stress in different ways.. El cuerpo puede responder al estrés de distintas maneras.

English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.