tri·cy·clic /(ˌ)traɪˈsaɪklɪk, ˈsɪklɪk/
  tri·cy·clic /(ˈ)traɪˈsaɪklɪk, ˈsɪklɪk/ 形容詞
  三輪列的
  tricyclic
       n : an antidepressant drug that acts by blocking the reuptake of
           norepinephrine and serotonin and thus making more of
           those substances available to act on receptors in the
           brain [syn: tricyclic antidepressant, tricyclic
           antidepressant drug]