nor·adren·a·line /ˌnɔrəˈdrɛnḷən/
  nor·adren·a·line /ˌnɔrəˈdrɛnḷən/ 名詞
  去甲腎上腺素,降正腎上腺素(舊名正腎上腺素)
  noradrenaline
       n : a catecholamine precursor of epinephrine that is secreted by
           the adrenal medulla and also released at synapses [syn: norepinephrine]