Medical Definition of aggression
: hostile, injurious, or destructive behavior or outlook especially when caused by frustration
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Dictionary: Definition of "aggression" Thesaurus: All synonyms and antonyms for "aggression" Spanish Central: Translation of "aggression" Nglish: Translation of "aggression" for Spanish speakers Britannica English: Translation of "aggression" for Arabic speakers Britannica.com: Encyclopedia article about "aggression"
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