excitable

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ex·cit·a·ble / ikˈsītəbəl/ • adj. responding rather too readily to something new or stimulating; too easily excited: Chip could be a bit wayward and excitable. ∎  (of tissue or a cell) responsive to stimulation.DERIVATIVES: ex·cit·a·bil·i·ty / ikˌsītəˈbilitē/ n.ex·cit·a·bly / -əblē/ adv.

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