noun
hypersensitivity; oversensitivity
Medical term for an exaggerated immune response or heightened sensitivity to stimuli. Also used in non-medical contexts for emotional or sensory oversensitivity.
花粉症は一種の過敏症です。
Hay fever is a type of hypersensitivity.
彼は化学物質過敏症に悩まされ
He suffers from multiple chemical sensitivity.