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English definition of “symptom”

symptom

noun [C] uk   /ˈsɪmp.təm/ us  
B2 any feeling of illness or physical or mental change that is caused by a particular disease: He's complaining of all the usual flu symptoms - a high temperature, headache, and so on. He's been HIV-positive for six years, but just recently he's started to develop the symptoms of AIDS.Symptoms and diagnosis of medical problems C2 any single problem that is caused by and shows a more serious and general problem: It's her feeling that the recent outbreaks of violence are a symptom of the dissatisfaction that is currently affecting our society.Typifying, illustrating and exemplifyingMeaning and significance
(Definition of symptom from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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