buck·tooth /-ˈtuθ/
  獠牙;齙牙
  buck·tooth /-ˈtuθ/ 名詞
  Buck·tooth n. Any tooth that juts out.
     When he laughed, two white buckteeth protruded.   --Thackeray.
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  bucktooth
       n : a large projecting front tooth
       [also: buckteeth (pl)]