资料来源 : pyDict

有二齿的

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Bidentate \Bi*den"tate\, a. (Bot. & Zo["o]l.)
   Having two teeth or two toothlike processes; two-toothed.

资料来源 : WordNet®

bidentate
     adj : having toothlike projections that are themselves toothed