स कक्षातिक्रान्तः प्रदरः ॥ कZ_१०.६.०९ ॥
sa kakṣātikrāntaḥ pradaraḥ
যখন সেই (দণ্ড-রেখা) কক্ষের বাইরে এগিয়ে যায়, তখন তাকে ‘প্রদর’ বলা হয়।
A forward-projecting centre can be isolated and attacked on both sides unless the wings keep pace or reserves support the salient.