Directrix Meaning in Bengali

What is the meaning of word Directrix in Bengali/Bangla ?

Meaning of Directrix in Bangla is : নিয়ামক

Defenition of word Directrix

Example

In the following, the feet of perpendiculars dropped from points A, B, etc. on the parabola to the directrix will be denoted A ’, B ’, etc.

Other Meaning of Directrix