1. A surgical knife with a pointed double-edged blade; used for punctures and small incisions
   "The surgeon used a lancet to make a precise incision";
   - lance
    
2. An acutely pointed Gothic arch, like a lance
   "The cathedral's entrance featured a stunning lancet arch";
   - lancet arch

Derived forms: lancets

Type of: Gothic arch, surgical knife

Encyclopedia: Lancet