den·tate /ˈdɛnˌtet/
  (a.)有齒的,鋸齒狀的,齒狀的
  den·tate /ˈdɛnˌtet/ 形容詞
  有牙齒的,鋸齒狀的
  Den·tate Den·ta·ted a.
  1. Bot. Toothed; especially, with the teeth projecting straight out, not pointed either forward or backward; as, a dentate leaf.
  2. Zool. Having teeth or toothlike points. See Illust. of Antennæ.
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  dentate
       adj : having toothlike projections in the margin