http://arabiclexicon.hawramani.com/نمص/?book=3

Have a look at the link given below: http://arabiclexicon.hawramani.com/%d9%86%d9%85%d8%b5/?book=3 If it does not work, go for نمص which you can see when you scroll down on the same page. Hope this helps.

@Anees Hi Anees. I can't seem to find the definition for "نمص الحواجب". Is it in the same dictionary (i.e. Lisaan Al-Arab? Do you mind copy-pasting it here? Thank you!

ِAccording to the dictionary, the term نمص connotes forehead threading. Though, the term now has been in use to refer to the act of threading (removal of soft hair by threading) whether from the forehead or face. Hence, when it comes to eyebrows threading, it says 'نمص الحواجب" As for the answer submission, if you find the answer sufficient for your query, then it is fair. It can also be expected to receive a comprehensive answer from our Arabic linguists.

@Anees Thank you very much Anees! Do you mind submitting your answer so that I can award it "best answer"? Also, can we be sure that "forehead" is being referred to here and not eyebrows?