Knife-shaped
• (a.) Alt. of Cultrated
Cul'trate adjective [ Latin cultratus knife-shaped, from culter , cultri , knife.] (Bot. & Zoology) Sharp-edged and pointed; shaped like a pruning knife, as the beak of certain birds. 
Knife-shaped
cultrate Formed like a knife or coulter; having a sharp edge like a knife.
sharp-edged and pointed, as a leaf.