1. reaction

noun. (riːˈækʃən) (chemistry) a process in which one or more substances are changed into others.
Synonyms
photochemical reaction endothermic reaction chemical decomposition reaction chemical reaction redox metathesis neutralisation decomposition reducing neutralization reaction oxidation neutralization chemical action double decomposition reaction chemical process hydrolysis chemical change displacement reaction aldol reaction saponification reduction displacement equilibrium chain reaction elimination reaction oxidization double decomposition exothermic reaction neutralisation reaction decomposition reaction oxidoreduction oxidation-reduction chemical equilibrium addition reaction oxidisation
Antonyms
unsatisfactory voluntary fall short of disagree question
Etymology
reaction (English)
reaction (Old French (842-ca. 1400))
reactio (Latin)
actio (Latin)
-tio (Latin)
actum (Latin)
ago (Latin)
actus (Latin)
re- (Latin)
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2. reaction

noun. (riːˈækʃən) An idea evoked by some experience.
Synonyms
thought idea
Antonyms
inactiveness dormant inaction
Etymology
reaction (English)
reaction (Old French (842-ca. 1400))
reactio (Latin)
actio (Latin)
-tio (Latin)
actum (Latin)
ago (Latin)
actus (Latin)
re- (Latin)

3. reaction

noun. (riːˈækʃən) A bodily process occurring due to the effect of some antecedent stimulus or agent.
Synonyms
taxis galvanic skin response psychogalvanic response physiological reaction bodily process electrodermal response innate reflex passage double take tropism inborn reflex learned response transfusion reaction activity reflex action unconditioned reflex kinesis overreaction rebound bodily function passing electrical skin response reflex response immunologic response Tarchanoff phenomenon automatism learned reaction reflex immune response answer immune reaction GSR response Fere phenomenon instinctive reflex body process
Antonyms
inactivity discontinuance activation sink source
Etymology
reaction (English)
reaction (Old French (842-ca. 1400))
reactio (Latin)
actio (Latin)
-tio (Latin)
actum (Latin)
ago (Latin)
actus (Latin)
re- (Latin)

4. defense

noun. (dɪˈfɛns) (military) military action or resources protecting a country against potential enemies.
Synonyms
defensive measure chemical defense military action biological warfare defence biological defence biological defense mining hasty defense biodefence air defense umbrella biological warfare defense biodefense BW defence deliberate defense hasty defence stand chemical defence deliberate defence action minelaying BW defense defence
Antonyms
sit lie down yield surrender change

5. defense

noun. (dɪˈfɛns) Protection from harm.
Synonyms
protection defence
Antonyms
forbid sit down lie

6. defense

noun. (dɪˈfɛns) (sports) the team that is trying to prevent the other team from scoring.
Synonyms
defending team team squad defence
Antonyms
offence offense movability looseness movableness

7. defense

noun. (dɪˈfɛns) The justification for some act or belief.
Synonyms
alibi vindication self-justification justification apology exculpation apologia excuse defence
Antonyms
inactivity normality affirmative union engagement

8. defense

noun. (dɪˈfɛns) (psychiatry) an unconscious process that tries to reduce the anxiety associated with instinctive desires.
Synonyms
regression repression intellectualisation rationalization reaction formation intellectualization defense mechanism displacement compensation idealisation denial projection defence reaction psychoanalytic process idealization isolation process conversion defence mechanism rationalisation unconscious process defense reaction defence
Antonyms
natural object disassembly misconstruction blame flora

9. defense

noun. (dɪˈfɛns) The defendant and his legal advisors collectively.
Synonyms
collection accumulation aggregation defense team defense lawyers assemblage defence
Antonyms
prosecution evolution ride slow fast

10. Defense

noun. The federal department responsible for safeguarding national security of the United States; created in 1947.
Synonyms
NGA BMDO U. S. Air Force Ballistic Missile Defense Organization Department of Defense U. S. Army USA DARPA Defense Department Army United States Air Force USAF Air Force Defense Intelligence Agency NRO DTIC National Security Agency executive department US Army United States Army NSA United States Department of Defense CCRC Defense Information Systems Agency US Air Force United States Navy DoD Defense Advanced Research Projects Agency Defense Technical Information Center Casualty Care Research Center Department of Defense Laboratory System Navy LABLINK DIA National Geospatial-Intelligence Agency US Navy Defense Logistics Agency DISA National Reconnaissance Office USN
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