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1. Oxford Dictionary

   excitant

   • IPA[ˈɛksɪt(ə)nt]

   英式

   • n.
     a substance which elicits an active physiological or behavioural response

   • noun: excitant, plural noun: excitants

2. • 釋義

   n.

   名詞

   • 1. a substance which elicits an active physiological or behavioural response what happens when chemical excitants flood into the brain?
3. • 更多解釋

   excitant

   • IPA[ikˈsītnt]

   美式

   • n.
     a substance which elicits an active physiological or behavioral response: what happens when chemical excitants flood into the brain?

   Oxford American Dictionary