কষটি শিলকষ্ট
কষটি-শিলা (Assamese) [ Roman: ko.xo.ti-xi.la]
Contributed by: Probodh Borah (প্ৰবোধ বৰা) on 2011-10-30
1. Physics(Material Noun-Neuter) a piece of fine-grained dark schist or jasper formerly used for testing alloys of gold by observing the colour of the mark which they made on it. সোণ পৰীক্ষা কৰা শিল।