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English definition of “sensitivity”

sensitivity

noun (REACTING EASILY)    /ˌsen.sɪˈtɪv.ɪ.ti/ US  /-səˈtɪv.ə.t̬i/ (also sensitiveness)
[U or C] having a strong physical reaction to something: One of the side effects of the drug is an increased sensitivity to sunlight.Reacting and responding [U] the ability to record small changes in weight, temperature, etc.: The sensitivity of the machine provides us with extremely accurate data.Machinery and machinesHousehold equipment and domestic chores
(Definition of sensitivity noun (REACTING EASILY) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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